Question

Father is 4 times as old as his son and sum
of their ages is 40. Then the age of his son
is:
(1) 8
(2) 10
(3) 12
(4) 15​

Answer 1

Explanation:

let age of son be X

4X+X=40

X=8

So age of son is 8

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Answer 2

Answer:

8

Explanation:

Father is four times as old as his son

and sum of their ages is 40.

So, age of his son = 4x + x = 40

= 8