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# Ratio and Proportion

1.
A and B together have Rs. 1210. If  of A's amount is equal to  of B's amount, how much amount does B have?

480
484
474
470

2.
If a:b = 2:3 and b:c = 4:3, then find a:b:c

8:12:9
2:3:8
2:3:9
2:3:12

3.
Find the fourth proportion to 2,3,6

12
18
9
8

4.
If A:B = 2:3, B:C = 4:5 and C:D = 6:7, then find the value of A:B:C:D

15:24:30:35
16:24:30:35
17:24:30:35
18:24:30:35

5.
If 2 : 9 :: x : 18, then find the value of x

2
3
4
5

6.
if x:y = 1:3, then find the value of
(7x+3y):(2x+y)

14:5
15:5
16:5
16:4

7.
The salaries of A, B and C are of ratio 2:3:5. If the increments of 15%, 10% and 20% are done to their respective salaries, then find the new ratio of their salaries.

20:33:60
21:33:60
22:33:60
23:33:60

8.
Rs. 120 are divided among A, B, C such that A's share is Rs. 20 more than B's and Rs. 20 less than C's. What is B's share

rs 10
rs 20
rs 24
rs 19

9.
In a college, the ratio of the number of boys to girls is 8 : 5. If there are 200 girls, the total number of students in the college is

420
520
620
720

10.
Two numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is

2:5
3:5
4:5
7:5

11.
In a mixture 60 litres, the ratio of milk and water 2 : 1. If the this ratio is to be 1 : 2, then the quanity of water to be further added is

20 liters
30 liters
50 liters
60 liters

12.
If three numbers in the ratio 3 : 2: 5 be such that the sum of their squares is 1862, the middle number will be

10
14
12
15

13.
A dog takes 3 leaps for every 5 leaps of a hare. If one leap of the dog is equal to 3 leaps of the hare, the ratio of the speed of the dog to that of the hare is

9:4
9:5
9:7
9:1

14.
The least whole number which when subtracted from both the terms of the ratio 6 : 7 to give a ratio less than 16 : 21, is

3
4
5
6

15.
The sum of three numbers is 98. If the ratio of the first to the second is 2:3 and that of the second to the third is 5:8, then the second number is

10
20
40
30