RATIO AND PROPORTION
1. The salaries A, B, C are in the ratio 2: 3: 5. If the increments of 15%, 10% and 20% are allowed respectively in their salaries, then what will be new ratio of their salaries?
A. 3 : 3 : 10 B. 10 : 11 : 20 C. 23 : 33 : 60 D. Cannot be determined
2. If 40% of a number is equal to two-third of another number, what is the ratio of first number to the second number?
A.2 : 5 B.3 : 7 C.5 : 3 D.7 : 3
3. The fourth proportional to 5, 8, 15 is:
A.18 B.24 C.19 D.20
4. Two numbers are in the ratio 3: 5. If 9 is subtracted from each, the new numbers are in the ratio 12: 23. The smaller number is:
A.27 B.33 C.49 D.55
5. In a bag, there are coins of 25 p, 10 p and 5 p in the ratio of 1 : 2 : 3. If there is Rs. 30 in all, how many 5 p coins are there?
A.50 B.100 C.150 D.200
6. A sum of Rs.312 was divided among 100 boys and girls in such a way that the boy gets Rs.3.60 and each girl Rs.2.40 the number of girls is
A.35 B.40 C.45 D.50
7. A sum of Rs. 36.90 is made up of 180 coins which are either 10 paise coins or 25 p coins. The number of 10 p coins is:
A.48 B.54 C.56 D.60
8. Rs.432 is divided amongst three workers A, B and C such that 8 times A’s share is equal to 12 times B’s share which is equal to 6 times C’s share. How much did A get?
A.Rs.192 B.Rs.133 C.Rs.144 D.Rs.128
9. If 20 men or 24 women or 40 boys can do a job in 12 days working for 8 hours a day, how many men working with 6 women and 2 boys take to do a job four times as big working for 5 hours a day for 12 days?
A.120 men B.122 men C.128 men D.134 men
10. P,Q and R enter into a partnership with capitals in the ratio 3:2:1. After 4 months, P leaves the business and after 4 more months Q also leaves the business and R continues till the end of the year. If R takes 10 of the profit for managing the business, then what part of the profit does R get?
A.37% B.36% C.27% D.30%
Answer Keys:
1.C
2.C
3.B
4.B
5.C
6.B
7.B
8.C
9.B
10.A
A. 3 : 3 : 10 B. 10 : 11 : 20 C. 23 : 33 : 60 D. Cannot be determined
2. If 40% of a number is equal to two-third of another number, what is the ratio of first number to the second number?
A.2 : 5 B.3 : 7 C.5 : 3 D.7 : 3
3. The fourth proportional to 5, 8, 15 is:
A.18 B.24 C.19 D.20
4. Two numbers are in the ratio 3: 5. If 9 is subtracted from each, the new numbers are in the ratio 12: 23. The smaller number is:
A.27 B.33 C.49 D.55
5. In a bag, there are coins of 25 p, 10 p and 5 p in the ratio of 1 : 2 : 3. If there is Rs. 30 in all, how many 5 p coins are there?
A.50 B.100 C.150 D.200
6. A sum of Rs.312 was divided among 100 boys and girls in such a way that the boy gets Rs.3.60 and each girl Rs.2.40 the number of girls is
A.35 B.40 C.45 D.50
7. A sum of Rs. 36.90 is made up of 180 coins which are either 10 paise coins or 25 p coins. The number of 10 p coins is:
A.48 B.54 C.56 D.60
8. Rs.432 is divided amongst three workers A, B and C such that 8 times A’s share is equal to 12 times B’s share which is equal to 6 times C’s share. How much did A get?
A.Rs.192 B.Rs.133 C.Rs.144 D.Rs.128
9. If 20 men or 24 women or 40 boys can do a job in 12 days working for 8 hours a day, how many men working with 6 women and 2 boys take to do a job four times as big working for 5 hours a day for 12 days?
A.120 men B.122 men C.128 men D.134 men
10. P,Q and R enter into a partnership with capitals in the ratio 3:2:1. After 4 months, P leaves the business and after 4 more months Q also leaves the business and R continues till the end of the year. If R takes 10 of the profit for managing the business, then what part of the profit does R get?
A.37% B.36% C.27% D.30%
Answer Keys:
1.C
2.C
3.B
4.B
5.C
6.B
7.B
8.C
9.B
10.A
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