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A father is three times as old as his...

A father is three times as old as his son. After twelve years, his age will be twice as that of his son then. Find their present ages.

A

10y, 20y

B

12y, 36y

C

6y, 36y

D

124y, 24y

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The correct Answer is:
B
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ARIHANT SSC-ELEMENTS OF ALGEBRA-INTRODUCTORY EXERCISE - 13.2
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