A sum of ₹11,236 is divided among A, B and C such that the ratio of the shares of A and B is 3 : 5 and the ratio of the shares of A and C is 4 : 7. The share of B is:

₹3,392 ₹2,544 ₹4,452 ₹4,240

₹4,240

Here, A : B : C 3 : 5  :   4  :  : 7 12 : 20 : 21 ⇒ (12 + 20 + 21)units = 11236 ⇒ 53 units = 11236 ⇒ 1 unit = 212 ⇒ Share of B = 20 x 212 = Rs. 4240.