Question

41. 8 years hence the sum of A's and B's
age will be 70 years. 4 years ago, the
ratio between sum of ages of A and B
together and C's age was 2 : 1. What is
the present age of C?​

Answer 1

Answer:

Let present ages of A, B and C be A years, B years and C years respectively, then

(A + 8) +(B + 8) = 70

⇒ A + B = 54  

∴  C - 4 = (A - 4 + B - 4)/2  

2C - 8 = A + B - 8

C = (A + B)/2

C = 27 years