Question

If we subtract 8 from grandfather’s present age and divide the remainder by 15 we get the present age of grandson who his 3 years younger than his brothers of 7 years. Find the present age the grandfather?

Answer 1

grandson's brother age = 7years

Grandson's age = 7 - 3 = 4years

Grandfather's age = x

(x - 8)/15 = 4

x - 8 = 15 x 4

x  = 60 + 8 = 68

Grand father's age = 68 years