Answers

2015-11-15T14:49:31+05:30
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.


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2015-11-15T14:49:33+05:30
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.


0