Question
The ages of two persons differ by 16 years. If 6 years ago, the elder one be 3 times as old as the younger one, find their present ages?
Answer: Option A
 - Let the age of the younger person be x years.
Then, age of the elder person = (x + 16) years.
:. 3 (x - 6) = (x + 16 - 6) => 3x -18 = x + 10
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 - Let the age of the younger person be x years.
Then, age of the elder person = (x + 16) years.
:. 3 (x - 6) = (x + 16 - 6) => 3x -18 = x + 10
2x = 28 => x = 14
Hence, their present ages are 14 years and 30 years.
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