Saturday, April 20, 2024

Brain Teaser

A grandfather is 56 years old and his grandson is 14 years old.

After how many years will the grandfather be twice as old as his grandson?

See the answer

Answer: After 28 years.

Let X be the number of years we are looking for. Then we have, 56 + X = 2(14 + X). Solving for X, we get X = 28.

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