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#1 2005-08-22 21:06:30
- MathsIsFun
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- Registered: 2005-01-21
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Two emailed Puzzles
A visitor has asked me by email:
I need a solution for the below questions:
Can you write 31 by usingly only digit 3 five times?
Can you place 10 coins in a five straight lines each having four coins?
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
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#2 2005-08-22 22:38:24
- mathsyperson
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- Registered: 2005-06-22
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Re: Two emailed Puzzles
Well, the second one is a star:
O
O O O O
O O
O
O O
It would work if I could draw better, but you see what I mean.
The first one I'll have to think about.
Why did the vector cross the road?
It wanted to be normal.
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#3 2005-08-22 22:44:12
- MathsIsFun
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Re: Two emailed Puzzles
3^3 + 3 + 3/3 = 27 + 3 + 1 = 31
(That star would make a good logo !)
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
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#4 2005-08-23 22:53:23
- wcy
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- Registered: 2005-08-04
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Re: Two emailed Puzzles
Another way:
33-3+3/3=33-3+1=31
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#5 2005-08-23 23:29:09
- mathsyperson
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Re: Two emailed Puzzles
Technically, the answer to both is 'yes'.
Why did the vector cross the road?
It wanted to be normal.
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#6 2005-08-24 00:09:46
- MathsIsFun
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- Registered: 2005-01-21
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Re: Two emailed Puzzles
And I thought the answer to both was 31 ... silly me.
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
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