Reena is twice as old as Sunita .Three years ago, she was three times as old as Sunita. How old is Reena now?
Solution-
Let the present age of Suneeta =x and Reena =2x
three years before-
(x-3)3 =(2x-3)
3x-9=2x-3
x=6year
then the age of reena =2×6=12 years .
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