Question

the present ages of husband and wife are in the ratio 4:3.thirty years later ,the husband will be 10 years older to her. what is their present age

Answer 1

let the cf be x.
therefore, the present age of husband and wife is 4x & 3x.
4x+30=3x+30+10
4x=3x+10
4x-3x=10
x=10
therefore, present age of husband is 4*10=40
and that of wife's is 3*10=30