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GATE question
The mom is 21 years older than the child.
In 6 years from now the mom will be 5 times as old as the child.
Question :
Where's the father?
Try first, before you check the answer below!
Please try this one. Please do not scroll down till you give up with the answer.
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Solution :
The mom is 21 years older than the child.
M = C + 21
In 6 years from now the mom will be 5 times as old as the child.
M + 6 = (C + 6) x 5
Hence,
C + 21 + 6 = (C + 6) x 5
C + 27 = 5C + 30
-3 = 4C
C = -3/4 = -9 months
The child is -3/4 years old, it'll be born in 9 months.
"So right now, the father is on top of the MOTHER!
