My grandfather is 56 years old and i am 14 years old. In how many years will his age be double than me

Question

My grandfather is 56 years old and i am 14 years old. In how many years will his age be double than me

Answer 1

Set up the problem as an equation where X is years: 14+X = (56+X)/2 Solve for X 14+X = 28 + 0.5*(X) subtract 14 from both sides: X = 14 + 0.5*(X) subtract 0.5*(X) from both sides: 0.5*(X) = 14 Solve for X by dividing both sides by 0.5: X = 28