Where's the Father?Math brain teasers require computations to solve.
The mother is 21 years older than the child.
6 years from now, the mother will be 5 times as old as the child.
Question : Where is the father?
AnswerThe 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.
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