# A mother is 21 years older than her child.Where's the father?

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A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.

Where's the father?

posted Nov 14, 2014
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## 2 Answers

+2 votes

Best answer

The mum is 21 years older than the child, so...
M = C + 21

In 6 years from now the mum will be 5 times as old as the child.
M + 6 = (C + 6) * 5

(C + 21)+ 6 = (C + 6) * 5
C + 27 = 5C + 30
-3 = 4C
C = -3/4

The child is -3/4 years old, i.e. it'll be born in 9 month's time.
So, the father is probably nearby.

answer Nov 14, 2014
"Nearby" :D
+1 vote

Maybe on mother

answer Feb 18, 2016 by

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