Question

The ratio of the present age of A to B is 4:5 and that of the present age of C to Dis 7:5. The average of
the present ages of A, B, C and D is 27 years and D's age 3 years hence will be 14 years less than A's
present age. What is B's present age? (in years)
1) 30
2) 25
3) 40
4) 50
5) 20​

Answer 1

Answer:

3)40......….........….