Where is the father?

4 stars

A mother is 21 years older than her child.

In 6 years time, the mother will be 5 times older than the child.

Question: Where is the father?


Answer:

M = Mother
C = Child

M = C + 21
M+6 = (C+6)*5

C+21+6 = (C+6)*5
C+21+6 = 5C + 30
C+27 = 5C + 30
27 = 4C + 30
-3 = 4C
-3/4 = C
-9 months = C

Therefore the child was in bed with the mother 9 months before he was born! 

 

Difficulty
  • Moderate
Type
  • Mathematical
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Comments

Father is in a bar. Lol.

Question: Where is the father?
- Hisham (12 Jan 2014)

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