1.  Reena is twice as old as Sunita. Three years ago, she was three times as old as Sunita. How old is Reena now ?
A. 6 years
B. 12 years
C. 14 years
D. 16 years

Answer: Option B

Explanation:

Let Sunita's present age = x years

Then Reena present age = 2x years

Three years ago

(2x-3) = 3(x-3)

2x - 3 = 3x - 9

or x = 6

Reena age = 2x = 2*6 = 12 year.