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In the Act (Posted on 2002-11-25) Difficulty: 2 of 5
A mother is 21 years older than her son, and in 6 years time the son will be one fifth of her age.

Where is the father?

  Submitted by Cheradenine    
Rating: 3.7500 (12 votes)
Solution: (Hide)
S = son's age, M = mother's age

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

substitute for M:

5(S + 6) = S + 21 + 6
5S + 30 = S + 27
4S = -3
S = -3/4 = -9 months!

so the solution is:

All over the mother!

(i heard this as a joke, sorry i couldnt resist such cheap humor..)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
SolutionLolMath Man2016-06-09 06:34:43
SolutionPuzzle ResolutionK Sengupta2007-11-17 05:08:55
Where is the fatherIsi Poeira2005-05-16 21:56:19
re: No fatherCorey2004-09-29 16:04:09
Good one!Brian Smith2003-05-02 04:39:43
Question-9 monthsTim Axoy2003-03-31 01:25:38
imanigary world................Ravi Raja2003-02-26 05:06:38
re: No fatherRavi Raja2003-02-26 05:03:43
can this be........??Ravi Raja2003-02-26 04:59:19
Just a guess...Corey2003-02-25 18:39:38
Ratingcges2002-12-11 08:30:09
re: interestingMatthew Bobbins2002-12-02 07:44:29
SolutionNo fatherA2002-11-27 00:17:31
A slight addition to thatAeternus2002-11-26 00:41:54
interestingionman2002-11-25 03:46:06
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