UPSC
April 14, 2022
Super Fast Class Batch - Quantitative Aptitude Set 01 Answer Explanations
Super Fast Class Batch
Quantitative Aptitude Set 01 Answer Explanations
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Showing posts with label QUANTITATIVE. Show all posts
Showing posts with label QUANTITATIVE. Show all posts
Saturday, April 9, 2022
UPSC
April 09, 2022
Super fast Class Batch - Quantitative Aptitude Set 01 Answer Keys
Super fast Class Batch
Quantitative Aptitude Set 01 Answer Keys
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Tuesday, March 17, 2020
TNPSC
March 17, 2020
QUANTITATIVE APTITUDE - SIMPLE INTEREST SET 07
SIMPLE INTEREST SET 07
1. The simple interest on a sum of money is Rs. 50. What is the sum?
I. The interest rate is 10% p.a.
II. The sum earned simple interest in 10 years
I. The interest rate is 10% p.a.
II. The sum earned simple interest in 10 years
A) I alone sufficient while II alone not sufficient to answer
B) II alone sufficient while I alone not sufficient to answer
C) Either I or II alone sufficient to answer
B) II alone sufficient while I alone not sufficient to answer
C) Either I or II alone sufficient to answer
D) Both I and II are necessary to answer
2 . How much time will it take for an amount of Rs. 1500 to get Rs. 225 as interest at 5% per annum of simple interest ?
A. 1 year B. 2 years C. 4 years D. 3 years
3. What will be the simple interest on an amount of Rs. 2000 in 3 years at interest 4% per annum?
A. Rs. 220 B. Rs. 240 C. Rs. 250 D. Rs. 280
4. At what rate of interest, a sum of Rs. 15000 will be Rs. 17625 in 5 years?
A. 3 % B. 3.5 % C. 4 % D. 4.5 %
5. What will be the ratio of simple interest earned by a certain amount at the same rate of interest for 2 years & for 4 years ?
A. 2 : 1 B. 1 : 2 C. 1 : 3 D. Cannot determind
6. A person takes a loan of Rs. 2500 at 4 % simple interest. He returns Rs. 1500 at the end of 1 year. What amount he would pay to clear his dues at the end of 2 years ?
A. Rs. 1100 B. Rs. 1140 C. Rs. 1050 D. Rs. 1150
7. Ram borrows a sum from Mohan at the rate of 8 % p.a. simple interest.After 2 years he had to pay Rs. 1600 as interest,only for the period.The principle amount borrowed by Ram was :
A. Rs. 9500 B. Rs. 11000 C. Rs. 10000 D. Rs. 10500
8. A certain amount earns simple interest of Rs. 2500 after 5 years. If the rate of interest increases by 3 %,how much more interest would it have earned?
A. Rs. 50 B. Rs. 250 C. Rs. 340 D. Cannot determind
9. A sum of money amounts to Rs. 10560 after 4 years and Rs. 11840 after 6 years at the same rate of simple interest.The rate of interest per annum is :
A. 6 % B. 8 % C. 7 % D. 9 %
10. Sohan received a sum at 12 % p.a. simple interest. After 5 years he returned the principal and interest. If he returned Rs. 16000. What was the principal amount?
A. Rs. 9000 B. Rs. 9500 C. Rs. 10000 D. Rs. 10500
Answer Keys:
1.D
2.D
3.B
4.B
5.B
6.B
7.C
8.D
9.B
10.C
Answer Keys:
1.D
2.D
3.B
4.B
5.B
6.B
7.C
8.D
9.B
10.C
TNPSC
March 17, 2020
QUANTITATIVE APTITUDE - SIMPLE INTEREST SET 06
SIMPLE INTEREST SET 06
1. A sum of Rs. 725 is lent in the beginning of a year at a certain rate of interest. After 8 months, a sum of Rs. 362.50 more is lent but at the rate twice the former. At the end of the year, Rs. 33.50 is earned as interest from both the loans. What was the original rate of interest?
A) 3.46% B) 4.5% C) 5% D) 6%
2. How long will it take for a sum of money to grow from Rs.1250 to Rs.10,000, if it is invested at 12.5% p.a simple interest?
A) 65years B) 56years C) 45years D) 57years
3. A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years. The sum is:
A) 650 B) 690 C) 698 D) 700
4. How much time will it take for an amount of Rs. 450 to yield Rs. 81 as interest at 4.5% per annum of simple interest?
A) 3.5 years B) 4 years C) 4.5 years D) 5 years
5. A sum of money invested for a certain number of years at 8% p.a. simple interest grows to Rs.180. The same sum of money invested for the same number of years at 4% p.a. simple interest grows to Rs.120 only. For how many years was the sum invested?
A) 25years B) 15years C) 20years D) 22years
6. A sum fetched a total simple interest of Rs. 4016.25 at the rate of 9 p.c.p.a. in 5 years. What is the sum?
A) Rs. 4462.50 B) Rs. 8032.50 C) Rs. 8900 D) Rs. 8925
7. An automobile financier claims to be lending money at simple interest, but he includesthe interest every six months for calculating the principal. If he is charging an interest of10%, the effective rate of interest becomes:
A) 10% B) 10.25% C) 10.5% D) none of these
8. A man borrowed Rs 24000 from two money lenders. For one loan, he paid 15% per annum and for the other 18% per annum. At the end of one year, he paid Rs 4050. How much did he borrow at each rate ?
A) Rs.16000 B) Rs.12000 C) Rs.15000 D) Rs.13000
9. The difference between the simple interest received from two different sources on Rs.1500 for 3 years is Rs.13.50. The difference between their rates of interest is
A) 0.1% B) 0.2% C) 0.3% D) 0.4%
10. What will be the ratio of simple interest earned by certain amount at the same rate of interest for 6 years and that for 9 years?
A) 1:3 B) 1:4 C) 2:3 D) data is inadequate
Answer Keys:
1.A
2.B
3.C
4.B
5.A
6.D
7.B
8.C
9.C
10.C
Answer Keys:
1.A
2.B
3.C
4.B
5.A
6.D
7.B
8.C
9.C
10.C
TNPSC
March 17, 2020
QUANTITATIVE APTITUDE - SIMPLE INTEREST SET 05
SIMPLE INTEREST SET 05
1.A certain sum of money amounts to Rs 1008 in 2 years and to Rs 1164 in 3 ½ years. Find the sum and the rate of interest.
A) 800, 14% B) 800, 13% C) 800, 12% D) 800, 19%
2.A man took loan from a bank at the rate of 12% p.a. simple interest. After 3 years he had to pay Rs. 5400 interest only for the period. The principal amount borrowed by him was:
A) Rs.2000 B) Rs.10000 C) Rs.15000 D) Rs.20000
3.A father left a will of Rs.35 lakhs between his two daughters aged 8.5 and 16 such that they may get equal amounts when each of them reach the age of 21 years. The original amount of Rs.35 lakhs has been instructed to be invested at 10% p.a. simple interest. How much did the elder daughter get at the time of the will?
A) 17.5 lakhs B) 21 lakhs C) 15 lakhs D) 20 lakhs
4. At what rate percent per annum will a sum of money double in 8 years.
A) 12.5% B) 13.5% C) 11.5% D) 14.5%
5. Mr. Thomas invested an amount of Rs. 13,900 divided in two different schemes A and B at the simple interest rate of 14% p.a. and 11% p.a. respectively. If the total amount of simple interest earned in 2 years be Rs. 3508, what was the amount invested in Scheme B?
A) Rs.6400 B) Rs.6500 C) Rs.7200 D) Rs.7500
6. A sum of Rs.1550 was lent partly at 8% p.a. simple interest. The total interest received after 3 years was Rs.300. The ratio of the money lent at 5% to that lent at 8% is :
A) 5:8 B) 6:7 C) 16:15 D) 17:18
7. A person borrows Rs. 5000 for 2 years at 4% p.a. simple interest. He immediately lends it to another person at 61/4 p.a for 2 years. Find his gain in the transaction per year
A) Rs. 112.50 B) Rs.150.25 C) Rs.167.50 D) Rs.170
8. A sum of money amounts to Rs. 9800 after 5 years and Rs. 12005 after 8 years at the same rate of simple interest. The rate of interest per annum is:
A) 5% B) 8% C) 12% D) 15%
9. Simple interest on a certain sum is 16/25 of the sum. Find the rate percent and time, If both are numerically equal.
A) Rate = 7% and Time = 7 years. B) Rate = 8% and Time = 8 years.
C) Rate = 6% and Time = 6 years. D) Rate = 5% and Time = 5 years.
C) Rate = 6% and Time = 6 years. D) Rate = 5% and Time = 5 years.
10. A certain amount earns simple interest of Rs. 1750 after 7 years. Had the interest been 2% more, how much more interest would it have earned?
A) Rs.35 B) Rs.245 C) Rs.350 D) cannot be determined
Answer Keys:1.B
2.C
3.B
4.A
5.A
6.C
7.A
8.C
9.B
10.D
2.C
3.B
4.A
5.A
6.C
7.A
8.C
9.B
10.D
TNPSC
March 17, 2020
QUANTITATIVE APTITUDE - SIMPLE INTEREST SET 04
SIMPLE INTEREST SET 04
1. Rs. 800 becomes Rs. 956 in 3 years at a certain rate of simple interest. If the rate of interest is increased by 4%, what amount will Rs. 800 become in 3 years.
A.Rs 1052 B.Rs 1152 C.Rs 1252 D.Rs 1352
2. In how many years Rs 150 will produce the same interest at 8% as Rs. 800 produce in 3 years at 9/2%
A.8 B.9 C.10 D.11
3. What will the ratio of simple interest earned by certain amount at the same rate of interest for 6 years and that for 9 years.
A.1:2 B.2:1 C.2:2 D.2:3
4. A financier claims to be lending money at simple interest, But he includes the interest every six months for calculating the principal. If he is charging an interest of 10%, the effective rate of interest becomes.
A.10.25% B.10% C.9.25% D.9%
5. A sum of money amounts to Rs 9800 after 5 years and Rs 12005 after 8 years at the same rate of simple interest. The rate of interest per annum is
A.9% B.10% C.11% D.12%
6. A lent Rs. 5000 to B for 2 years and Rs 3000 to C for 4 years on simple interest at the same rate of interest and received Rs 2200 in all from both of them as interest. The rate of interest per annum is
A.9% B.10% C.11% D.12%
7. We have total amount Rs. 2379, now divide this amount in three parts so that their sum become equal after 2, 3 and 4 years respectively. If rate of interest is 5% per annum then first part will be ?
A.818 B.828 C.838 D.848
8.What annual instalment will discharge a debt of Rs 1092 due in 3 years at 12% simple interest?
A) Rs.325 B) Rs.545 C) Rs.560 D) Rs.550
9.In how many years will a sum of Rs.800 at 10% per annum compounded semi annually become Rs.926.10
A) 1.5 B) 2.5 C) 3.5 D) 4.5
10.A sum was put at simple interest at a certain rate for 10 years . Had it been put at 5% higher rate , it would have fetched Rs.600 more. What was the Sum?
A) Rs.1200 B) Rs.1300 C) Rs.1400 D) Rs.1500
Answer Keys:
1.A
2.B
3.B
4.A
5.D
6.B
7.B
8.A
9.A
10.A
Answer Keys:
1.A
2.B
3.B
4.A
5.D
6.B
7.B
8.A
9.A
10.A
TNPSC
March 17, 2020
QUANTITATIVE APTITUDE - SIMPLE INTEREST SET 03
SIMPLE INTEREST SET 03
1. Find the rate at Simple interest, at which a sum becomes four times of itself in 15 years.
A.10% B.20% C.30% D.40%
2. At 5% per annum simple interest, Rahul borrowed Rs. 500. What amount will he pay to clear the debt after 4 years
A.750 B.700 C.650 D.600
3. If a sum of money doubles itself in 8 years at simple interest, the ratepercent per annum is
A.12 B.12.5 C.13 D.13.5
4. A sum of Rs 12,500 amounts to Rs. 15,500 in the 4 years at the rate of simple interest. Find the rate percent
A.6 % B.7 % C.8 % D.9 %
5. What is the present worth of Rs. 132 due in 2 years at 5% simple interest per annum
A.110 B.120 C.130 D.140
6. Reema took a loan of Rs 1200 with simple interest for as many years as the rate of interest. If she paid Rs. 432 as interest at the end of the loan period, what was the rate of interest.
A.5% B.6% C.7% D.8%
7. The simple interest on a certain sum of money at the rate of 5% p.a. for 8 years is Rs. 840. At what rate of intrest the same amount of interest can be received on the same sum after 5 years.
A.5% B.6% C.7% D.8%
8. A man took a loan at rate of 12% per annum simple interest. After 3 years he had to pay 5400 interest. The principal amount borrowed by him was.
A.Rs 14000 B.Rs 15000 C.Rs 16000 D.Rs 17000
9. A sum of money at simple interest amounts to Rs. 2240 in 2 years and to Rs. 2600 in 5 years. What is the principal amount
A.1000 B.1500 C.2000 D.2500
10. At what rate percent per annum will the simple interest on a sum of money be 2/5 of the amount in 10 years
A.1% B.2% C.3% D.4%
Answer Keys:
1.B
2.D
3.B
4.A
5.B
6.B
7.D
8.B
9.C
10.D
Answer Keys:
1.B
2.D
3.B
4.A
5.B
6.B
7.D
8.B
9.C
10.D
TNPSC
March 17, 2020
QUANTITATIVE APTITUDE - SIMPLE INTEREST SET 02
SIMPLE INTEREST SET 02
1. A sum of money amounts to Rs. 9800 after 5 years and Rs. 12005 after 8 years at the same rate of simple interest. The rate of interest per annum is:
A.5% B.8% C.12% D.15%
2. What will be the ratio of simple interest earned by certain amount at the same rate of interest for 6 years and that for 9 years?
A.1 : 3 B.1 : 4 C.2 : 3 D.Data inadequate E.None of these
3. A certain amount earns simple interest of Rs. 1750 after 7 years. Had the interest been 2% more, how much more interest would it have earned?
A.Rs. 35 B.Rs. 245 C.Rs. 350 D. Cannot be determined E. None of these
4. A person borrows Rs. 5000 for 2 years at 4% p.a. simple interest. He immediately lends it to another person at 6 p.a for 2 years. Find his gain in the transaction per year.
A.Rs. 112.50 B.Rs. 125 C.Rs. 150 D.Rs. 167.50
5. Find the simple interest on Rs 7000 at 50/3 % for 9 months
A.Rs. 1075 B.Rs. 975 C.Rs. 875 D.Rs. 775
6. Find the simple interest on the Rs. 2000 at 25/4% per annum for the period from 4th Feb 2005 to 18th April 2005
A.Rs 25 B.Rs 30 C.Rs 35 D.Rs 40
7. Sachin borrows Rs. 5000 for 2 years at 4% p.a. simple interest. He immediately lends money to Rahul at 25/4% p.a. for 2 years. Find the gain of one year by Sachin.
A.110.50 B.111.50 C.112.50 D.113.50
8. If A lends Rs. 3500 to B at 10% p.a. and B lends the same sum to C at 11.5% p.a., then the gain of B (in Rs.) in a period of 3 years is
A.Rs. 154.50 B.Rs. 155.50 C.Rs. 156.50 D.Rs. 157.50
9. Sahil took a loan for 6 years at the rate of 5% per annum on Simple Interest, If the total interest paid was Rs. 1230, the principal was
A.4100 B.4200 C.4300 D.4400
10. There was simple interest of Rs. 4016.25 on a principal amount at the rate of 9%p.a. in 5 years. Find the principal amount
A.Rs 7925 B.Rs 8925 C.Rs 7926 D.Rs 7925
Answer Keys:
1.C
2.C
3.D
4.A
5.C
6.A
7.C
8.D
9.A
10.B
Answer Keys:
1.C
2.C
3.D
4.A
5.C
6.A
7.C
8.D
9.A
10.B
TNPSC
March 17, 2020
QUANTITATIVE APTITUDE - SIMPLE INTEREST SET 01
SIMPLE INTEREST SET 01
1. A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years. The sum is:
A.Rs. 650 B.Rs. 690 C.Rs. 698 D.Rs. 700
2. Mr. Thomas invested an amount of Rs. 13,900 divided in two different schemes A and B at the simple interest rate of 14% p.a. and 11% p.a. respectively. If the total amount of simple interest earned in 2 years be Rs. 3508, what was the amount invested in Scheme B?
A.Rs. 6400 B.Rs. 6500 C.Rs. 7200 D.Rs. 7500 E.None of these
3. A sum fetched a total simple interest of Rs. 4016.25 at the rate of 9 p.c.p.a. in 5 years. What is the sum?
A.Rs. 4462.50 B.Rs. 8032.50 C.Rs. 8900 D.Rs. 8925
E.None of these
E.None of these
4. How much time will it take for an amount of Rs. 450 to yield Rs. 81 as interest at 4.5% per annum of simple interest?
A.3.5 years B.4 years C.4.5 years D.5 years
5. Reena took a loan of Rs. 1200 with simple interest for as many years as the rate of interest. If she paid Rs. 432 as interest at the end of the loan period, what was the rate of interest?
A.3.6 B.6 C.18 D.Cannot be determined E.None of these
6. A sum of Rs. 12,500 amounts to Rs. 15,500 in 4 years at the rate of simple interest. What is the rate of interest?
A.3% B.4% C.5% D.6% E.None of these
7. An automobile financier claims to be lending money at simple interest, but he includes the interest every six months for calculating the principal. If he is charging an interest of 10%, the effective rate of interest becomes:
A.10% B.10.25% C.10.5% D.None of these
8. A lent Rs. 5000 to B for 2 years and Rs. 3000 to C for 4 years on simple interest at the same rate of interest and received Rs. 2200 in all from both of them as interest. The rate of interest per annum is:
A.5% B.7% C. 7 1/8 % D.10%
9. A sum of Rs. 725 is lent in the beginning of a year at a certain rate of interest. After 8 months, a sum of Rs. 362.50 more is lent but at the rate twice the former. At the end of the year, Rs. 33.50 is earned as interest from both the loans. What was the original rate of interest?
A. 3.6% B.4.5% C.5% D. 6% E. None of these
10. A man took loan from a bank at the rate of 12% p.a. simple interest. After 3 years he had to pay Rs. 5400 interest only for the period. The principal amount borrowed by him was:
A.Rs. 2000 B.Rs. 10,000 C.Rs. 15,000 D.Rs. 20,000
Answer Keys:
1.C
2.A
3.D
4.B
5.B
6.D
7.B
8.D
9.E
10.C
Answer Keys:
1.C
2.A
3.D
4.B
5.B
6.D
7.B
8.D
9.E
10.C
Monday, February 24, 2020
TNPSC
February 24, 2020
QUANTITATIVE APTITUDE - PERCENTAGE SET 10
PERCENTAGE SET 10
1. The population of a village has increased annually at the rate of 20%. If at the end of 3 years it is 21600, the population in the beginning of the first year?
a) 10000 b) 12500 c) 15000 d) 17500 e) None of these
2. 12 percent of the voters in an election did not cast their votes. In this election there are only two candidates. The winner by obtaining 45% of the total votes and defeated his rival by 2000 votes. The total number of votes in the election
2. 12 percent of the voters in an election did not cast their votes. In this election there are only two candidates. The winner by obtaining 45% of the total votes and defeated his rival by 2000 votes. The total number of votes in the election
a) 50000 b) 75000 c) 100000 d) 125000 e) None of these
3. A number is first decreased by 25%. The decreased number is then increased by 20%. The resulting number is less than the original number by 40. Then the original number is –
3. A number is first decreased by 25%. The decreased number is then increased by 20%. The resulting number is less than the original number by 40. Then the original number is –
a) 100 b) 200 c) 300 d) 400 e) None of these
4. The number of seats in a cinema hall is decreased by 8% and also the price of the ticket is increased by 4 percent. What is the effect on the revenue collected?
4. The number of seats in a cinema hall is decreased by 8% and also the price of the ticket is increased by 4 percent. What is the effect on the revenue collected?
a) increase 4.32% b) decrease 4.32% c) increase 3.32 percent d) decrease 3.32% e) None of these
5. A man spends 60% of his income. His income is increased by 20% and his expenditure also increases by 10%. Find the percentage decrease in his saving?
5. A man spends 60% of his income. His income is increased by 20% and his expenditure also increases by 10%. Find the percentage decrease in his saving?
a) 10% b) 15% c) 20% d) 25% e) None of these
6. Weights of two friends A and B are in the ratio of 1:2. A’s weight increases by 20% and the total weight of A and B together becomes 60 kg, with an increase of 30%. By what percent the weight of B increase?
6. Weights of two friends A and B are in the ratio of 1:2. A’s weight increases by 20% and the total weight of A and B together becomes 60 kg, with an increase of 30%. By what percent the weight of B increase?
a) 30% b) 35% c) 40% d) 45% e) None of these
7. The marked price of an article is 20% higher than the cost price. A discount of 20% is given on the marked price. In this transaction the seller
7. The marked price of an article is 20% higher than the cost price. A discount of 20% is given on the marked price. In this transaction the seller
a) bears no loss no profit b) losses 4% c) gain 4% d) losses 1% e) None
8. When the price of rice is increased by 30 percent, a family reduces its consumption such that the expenditure is only 20 percent more than before. If 50 kg of rice is consumed by family before, then find the new consumption of family (approx.)
8. When the price of rice is increased by 30 percent, a family reduces its consumption such that the expenditure is only 20 percent more than before. If 50 kg of rice is consumed by family before, then find the new consumption of family (approx.)
a) 43kg b) 44kg c) 45kg d) 46kg e) None of these
9. A man has 4000 rupees in his account two years ago. In the first year he deposited 20 percent of the amount in his account. In the next year he deposited 10 percent of the increased amount in the account. Find the total amount in the account of the person after 2 years.
9. A man has 4000 rupees in his account two years ago. In the first year he deposited 20 percent of the amount in his account. In the next year he deposited 10 percent of the increased amount in the account. Find the total amount in the account of the person after 2 years.
a) 6650 b) 5280 c) 5740 d) 5840 e) None of these
10. In a class, 60% of the students are boys and in an examination, 80% of the girls scored more than 40 marks (Maximum Marks:150). If 60% of the total students scored more than 40 marks in the same exam, what is the fraction of the boys who scored 40 marks or less?
10. In a class, 60% of the students are boys and in an examination, 80% of the girls scored more than 40 marks (Maximum Marks:150). If 60% of the total students scored more than 40 marks in the same exam, what is the fraction of the boys who scored 40 marks or less?
A.8/15 B.7/15 C.4/5 D.1/5 e) None of these
Answer Keys:
1.B
2.C
3.D
4.B
5.A
6.B
7.B
8.D
9.B
10.A
Answer Keys:
1.B
2.C
3.D
4.B
5.A
6.B
7.B
8.D
9.B
10.A
TNPSC
February 24, 2020
QUANTITATIVE APTITUDE - PERCENTAGE SET 09
PERCENTAGE SET 09
1. A vendor sells 50 percent of apples he had and throws away 20 percent of the remainder. Next day he sells 60 percent of the remainder and throws away the rest. What percent of his apples does the vendor throw?
a) 20% b) 22% c) 24% d) 26% e) None
2. 40% of the women are above 30 years of age and 80 percent of the women are less than or equal to 50 years of age. 20 percent of all women play basketball. If 30 percent of the women above the age of 50 plays basketball, what percent of players are less than or equal to 50 years?
2. 40% of the women are above 30 years of age and 80 percent of the women are less than or equal to 50 years of age. 20 percent of all women play basketball. If 30 percent of the women above the age of 50 plays basketball, what percent of players are less than or equal to 50 years?
a) 50% b) 60% c) 70% d) 80% e) None
3. Alisha goes to a supermarket and bought things worth rupees 60, out of which 40 paise went on sales tax. If the tax rate is 10 percent, then what was the cost of tax free items?
3. Alisha goes to a supermarket and bought things worth rupees 60, out of which 40 paise went on sales tax. If the tax rate is 10 percent, then what was the cost of tax free items?
a) 54.60 b) 55.60 c) 56.60 d) 57.60 e) None of these
4. 60 percent of the employees of a company are women and 75% of the women earn 20000 or more in a month. Total number of employees who earns more than 20000 per month in the company is 60 percent of the total employees. What fraction of men earns less than 20000 per month?
4. 60 percent of the employees of a company are women and 75% of the women earn 20000 or more in a month. Total number of employees who earns more than 20000 per month in the company is 60 percent of the total employees. What fraction of men earns less than 20000 per month?
a) 5/8 b) 5/7 c) 1/5 d) ¾ e) None
5. In a library, 30% of the books are in History. 50% of the remaining are in English and 40% of the remaining are in German. The remaining 4200 books are in regional languages. What is the total number of books in library?
5. In a library, 30% of the books are in History. 50% of the remaining are in English and 40% of the remaining are in German. The remaining 4200 books are in regional languages. What is the total number of books in library?
a) 10000 b) 15000 c) 20000 d) 25000 e) None of these
6. A got 30% of the maximum marks in an examination and failed by 10 marks. However, B who took the same examination got 40% of the total marks and got 15 marks more than the passing marks. What were the passing marks in the examination?
6. A got 30% of the maximum marks in an examination and failed by 10 marks. However, B who took the same examination got 40% of the total marks and got 15 marks more than the passing marks. What were the passing marks in the examination?
a) 65 b) 75 c) 80 d) 90 e) None
7. The population of a town is 15000. It increases by 10 percent in the first year and 20 percent in the second year. But in the third year it decreases by 10 percent. What will be the population after 3 years.
7. The population of a town is 15000. It increases by 10 percent in the first year and 20 percent in the second year. But in the third year it decreases by 10 percent. What will be the population after 3 years.
a) 16820 b) 15820 c) 17820 d) 19820 e) None of these
8. 30 litre of solution contains alcohol and water in the ratio 2:3. How much alcohol must be added to the solution to make a solution containing 60% of alcohol?
8. 30 litre of solution contains alcohol and water in the ratio 2:3. How much alcohol must be added to the solution to make a solution containing 60% of alcohol?
a) 10 b) 12 c) 14 d) 15 e) None of these
9. 2000 sweets need to be distributed equally among the school students in such a way that each student gets sweet equal to 20% of total students. Then the number of sweets, each student gets.
9. 2000 sweets need to be distributed equally among the school students in such a way that each student gets sweet equal to 20% of total students. Then the number of sweets, each student gets.
a) 50 b) 100 c) 120 d) 150 e) None
10. A reduction of 20% percent in the price of rice enables a housewife to buy 5 kg more for rupees 1200. The reduced price per kg of rice
10. A reduction of 20% percent in the price of rice enables a housewife to buy 5 kg more for rupees 1200. The reduced price per kg of rice
a) 36 b) 45 c) 48 d) 60 e) None of these
Answer Keys:
1.D
2.C
3.B
4.A
5.C
6.E
7.C
8.D
9.B
10.C
Answer Keys:
1.D
2.C
3.B
4.A
5.C
6.E
7.C
8.D
9.B
10.C
TNPSC
February 24, 2020
QUANTITATIVE APTITUDE - PERCENTAGE SET 08
PERCENTAGE SET 08
1. A solution contains 10% of salt by weight. On evaporation 15 liter of water evaporates and now concentration of salt becomes 20 percent. Find the initial quantity of solution
a) 20ltr b) 30ltr c) 40ltr d) 50ltr e) None of these
2. A student has to get 40 percent marks to pass an examination. He got 60 marks but fails by 20 marks. Find the maximum marks of the examination.
2. A student has to get 40 percent marks to pass an examination. He got 60 marks but fails by 20 marks. Find the maximum marks of the examination.
a) 150 b) 200 c) 300 d) 400 e) None of these
3. The number of seats in a cinema hall is decreased by 12 percent and the price of tickets also decreased by 4 percent. Find the change in the collection of revenue.
3. The number of seats in a cinema hall is decreased by 12 percent and the price of tickets also decreased by 4 percent. Find the change in the collection of revenue.
a) decrease 15.52% b) decrease 16.52% c) decrease 17.52% d) decrease 14.325% e) None of these
4. A trader marks the price at 8 percent higher than the original price. Due to the hike in demand he again increases the price by 10 percent. How much percent profit he gets.
4. A trader marks the price at 8 percent higher than the original price. Due to the hike in demand he again increases the price by 10 percent. How much percent profit he gets.
a) 17.8% b) 18.8% c) 19.8% d) 20.8% e) None of these
5. The population of a town is 15000. It increases by 10 percent in the first year and 20 percent in the second year. But in the third year it decreases by 10 percent. What will be the population after 3 years.
5. The population of a town is 15000. It increases by 10 percent in the first year and 20 percent in the second year. But in the third year it decreases by 10 percent. What will be the population after 3 years.
a) 16820 b) 15820 c) 17820 d) 19820 e) None of these
6. One type of liquid contains 20 percent milk and in other liquid it contains 30 percent milk. If 4 parts of the first and 6 parts of the second are taken and formed a new liquid A. Find the percentage of milk in third liquid.
6. One type of liquid contains 20 percent milk and in other liquid it contains 30 percent milk. If 4 parts of the first and 6 parts of the second are taken and formed a new liquid A. Find the percentage of milk in third liquid.
a) 26 b) 28 c) 29 d) 30 e) None of these
7. A man has 2000 rupees in his account two years ago. In the first year he deposited 20 percent of the amount in his account. In the next year he deposited 10 percent of the increased amount in the account. Find the total amount in the account of the person after 2 years.
7. A man has 2000 rupees in his account two years ago. In the first year he deposited 20 percent of the amount in his account. In the next year he deposited 10 percent of the increased amount in the account. Find the total amount in the account of the person after 2 years.
a) 2650 b) 2640 c) 2740 d) 2840 e) None of these
8. 1000 sweets need to be distributed equally among the school students in such a way that each student gets sweet equal to 10% of total students. Then the number of sweets, each student gets.
8. 1000 sweets need to be distributed equally among the school students in such a way that each student gets sweet equal to 10% of total students. Then the number of sweets, each student gets.
a) 10 b) 12 c) 14 d) 16 e) None of these
9. If the price of an article is increased by 15%, then by how much the household should decrease their consumption so as to keep his expenditure same.
9. If the price of an article is increased by 15%, then by how much the household should decrease their consumption so as to keep his expenditure same.
a) 13(1/23) % b) 13(2/23)% c) 11(1/23)% d) 11(2/23)% e) None of these
10.In an election contested by two parties A and B, party A secured 25 percent of the total votes more than Party B. If party B gets 15000 votes. By how much votes does party B loses the election?
10.In an election contested by two parties A and B, party A secured 25 percent of the total votes more than Party B. If party B gets 15000 votes. By how much votes does party B loses the election?
a) 8000 b) 10000 c) 12000 d) 15000 e) None of these
Answer Keys:
1.B
2.B
3.A
4.B
5.C
6.A
7.B
8.A
9.A
10.B
Answer Keys:
1.B
2.B
3.A
4.B
5.C
6.A
7.B
8.A
9.A
10.B
TNPSC
February 24, 2020
QUANTITATIVE APTITUDE - PERCENTAGE SET 07
PERCENTAGE SET 07
1. The ratio between male and female in a city is 3: 7. The children percentage among the males and females of the city is 25 and 30 percent respectively. If the number of adult males in the city is 18000, then find the population of the town?
A.70000 B.80000 C.85000 D.95000 E. None of these
2. Pankaj gave 50 percent of the amount to Akash. Akash in turn gave two-fifth of the amount to venu. After paying a bill of 500 rupees, venu now have 8000 rupees left with him. Find the amount hold by pankaj initially.
2. Pankaj gave 50 percent of the amount to Akash. Akash in turn gave two-fifth of the amount to venu. After paying a bill of 500 rupees, venu now have 8000 rupees left with him. Find the amount hold by pankaj initially.
A.41500 B.42500 C.43500 D.44500 E. None of these
3. Rakesh spent 30 percent of his monthly income on food items. Of the remaining amount he spent 60 percent on clothes and bills. Now he save five-seventh of the remaining amount and the he saves 120000 yearly, then find his monthly income.
3. Rakesh spent 30 percent of his monthly income on food items. Of the remaining amount he spent 60 percent on clothes and bills. Now he save five-seventh of the remaining amount and the he saves 120000 yearly, then find his monthly income.
A.40000 B.50000 C.60000 D.70000 E.None of these
4. Weight of A and B are in the ratio of 3:5. If the weight of A is increased by 20 percent and then the total weight becomes 132 kg with an increase of 10 percent. B weight is increased by what percent.
4. Weight of A and B are in the ratio of 3:5. If the weight of A is increased by 20 percent and then the total weight becomes 132 kg with an increase of 10 percent. B weight is increased by what percent.
A.2% B.3% C.4% D.5% E.None of these
5. When the price of rice is increased by 25 percent, a family reduces its consumption such that the expenditure is only 10 percent more than before. If 40 kg of rice is consumed by family before, then find the new consumption of family.
5. When the price of rice is increased by 25 percent, a family reduces its consumption such that the expenditure is only 10 percent more than before. If 40 kg of rice is consumed by family before, then find the new consumption of family.
A.35.2 B.35.2 C.36.2 D.37.2 E. None of these
6. The price of rice is increased by 20 percent and a person decrease his consumption by 15 percent, so his expenditure on rice is-
6. The price of rice is increased by 20 percent and a person decrease his consumption by 15 percent, so his expenditure on rice is-
A. increase by 2 percent B. increase by 4 percent C. decrease by 2 percent
D. decrease by 4 percent E. None of these
7. A salary is 40 percent more than B. B’s salary is 30 percent less than C. If the difference between the salary of C and A is 1200 rupees, then what is the monthly income of C
D. decrease by 4 percent E. None of these
7. A salary is 40 percent more than B. B’s salary is 30 percent less than C. If the difference between the salary of C and A is 1200 rupees, then what is the monthly income of C
A.50000 B.60000 C.70000 D.80000 E.None of these
8. When the price of rice is increased by 30 percent, a family reduces its consumption such that the expenditure is only 20 percent more than before. If 50 kg of rice is consumed by family before, then find the new consumption of family (approx.)
8. When the price of rice is increased by 30 percent, a family reduces its consumption such that the expenditure is only 20 percent more than before. If 50 kg of rice is consumed by family before, then find the new consumption of family (approx.)
A.43kg B.44kg C.45kg D.46kg E.None of these
9. One type of liquid contains 20 percent of milk and second type of liquid contains 40 percent milk. If 4 part of the first and 6 part of the second are mix, then what is the percent of water in the mixture?
9. One type of liquid contains 20 percent of milk and second type of liquid contains 40 percent milk. If 4 part of the first and 6 part of the second are mix, then what is the percent of water in the mixture?
A.64% B.66% C.68% D.70% E.None of these
10. In a library 5 percent books are in English, 10 percent of the remaining are in Hindi and 15 percent of the remaining are in Sanskrit. The remaining 11628 books are in French. Then find the total number of books in the library.
10. In a library 5 percent books are in English, 10 percent of the remaining are in Hindi and 15 percent of the remaining are in Sanskrit. The remaining 11628 books are in French. Then find the total number of books in the library.
a) 8000 b) 12000 c) 16000 d) 20000 e) None of these
Answer Keys:
1.B
2.B
3.B
4.C
5.B
6.A
7.B
8.D
9.C
10.C
Answer Keys:
1.B
2.B
3.B
4.C
5.B
6.A
7.B
8.D
9.C
10.C
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