Question

. The total age of father and the son
is 63 years. Ratio of their age is 5:2.
After 10 years the age of the son is,
(A) 17 years
(B) 45 years
(C) 18 years
(D) 28 years​

Answer 1

Answer:

let x be common factor in the ratio

so sum of their age is 63

5x + 2x = 63

7x=63

x=9

so son age is 2x or 18

after 10 year his age would be 28 year