Ratio and proportion Actual Question in CUET 2022 Slot 2

Three numbers A, B and C are in the ratio of 12: 15:25. If sum of these numbers is 312, ratio between the difference of B and A and difference of C and B is

(1) 3:7

(2) 5:7

(3) 3:10

(4) 5:10

(1) 1

(2) 2

(3) 3

(4) 4

EXPLANATION

12x+ 15x+ 25x = 312

52x = 312

x= 6

Therefore, ratio between the difference of B and A and difference of C and B

3*6 : 10*6 = 3:10