Hema was twice as old as Geetha 10 years ago. How old is Geetha today if Hema will be 40 years old 10 years hence ?

Options

A. 25 years
B. 20 years
C. 15 years
D. 35 years

Answer

B

Explanation

Suppose the present age of Geetha is x years
Present age of Hema
= 40 - 10 = 30 years
According to question
2(x - 10) = 30 - 10
`implies2x - 20 = 20`
`implies 2x = 20 + 20 = 40`
`:.x=(40)/(2)=20` years.