Question

The ages of Rohit and Joy are in the ratio 7:5. Ten years hence, the ratio of their ages will be 9:5. Find their present ages.

Answer 1

here's ur answer....

let their ages be 7x and 5x respectively.

if 10 years from now there age will be 9x and 5x.

therefore 7x+10+5x+10=9x+5x

12x+20=14x

12x-14x=-20

-2x=-20

2x=20

x=20/2

x=10

therefore their present ages:-

Rohit=7x=7×10=70yrs

joy=5x=5×10=50yrs.

hope this is right answer