Baby Daddy

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

Question : Where’s the father?

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December 27th, 2010 | Category: Brain Riddle, Mathematical |  Email This Riddle

4 guesses to Baby Daddy

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• JENNNNNNNYYYYYYYYY

  January 3, 2011 at 8:34 PM

  next to her hopefully

• Dude

  January 3, 2011 at 9:07 PM

  An acceptable answer, but can you tell us why?

• its jenny again

  January 4, 2011 at 10:05 PM

  .75 years = 9 months
  moms giving birth

• Dude

  January 5, 2011 at 12:49 AM

  Yes! You nailed it, Jenny.

  Question : Where’s the father?
  The mother 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 = 5 x (C + 6)

  Hence,
  C + 21 + 6 = (C + 6) x 5
  C + 27 = 5C + 30
  -3 = 4C
  C = -3/4

  The child is -3/4 years old, i.e. it will be born in 9 months.

  So right now, the father is on top of the mother.

  You are today’s winner — Great job!