Question

If Rohan is 7 years older than is brother sohan and present ages of rohan is 20 years.
what will be a ages of sohan after ten years

Answer 1

age of sohan = 20 - 7 = 13 years

after 10 years age of sohan = 23 years

Answer 2

let sohan is x years old
then rohan's age=x+7
x+7=20
x=13 (present age of sohan)
sohan's age after 10 years=13+10=23 years

hope it helps☺☺