Subject:
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Re: See what you find when you go snooping around...
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Newsgroups:
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lugnet.org.ca.rtltoronto
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Date:
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Wed, 3 Sep 2003 20:02:05 GMT
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Viewed:
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574 times
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In lugnet.org.ca.rtltoronto, David Koudys wrote:
> In lugnet.org.ca.rtltoronto, David Koudys wrote:
>
> for example, the last one i did--
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> Dan (always seems to be) twice as old as Mike
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> Mike was 5 years younger than Ben
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> Ben was 10 years younger than Dan
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> Solve for Ben (as the clue)
Dan = 2xMike
Ben = Mike + 5
Ben = Dan - 10
Substitute for Dan:
(2xMike) - 10 = Ben = (Mike + 5)
2xMike - 10 = Mike + 5
Add 10 to each side:
2xMike = Mike + 15
Rewrite as:
Mike + Mike = Mike + 15
Subtract a Mike from each side:
Mike = 15
Therefore Ben = 20
Or is Canadian math different from U.S. math? *grin*
JohnG, GMLTC
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