Two elements A and B combine to form compound X and Y. For the fix mass of A, masses of B contained for the compounds X and Y are in 3:7 ratio. If in compound X, 4gm of A combines with 12gm B, then in compound Y, 8gm of A will combine with… gm of B.
A. 24
B. 56
C. 28
D. 8
