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#1 2005-07-04 19:05:11
- ganesh
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Try this one!
I have 4 marked weights with me and they all add up to 40 kg.
With a pair of scales, I can distribute any weighment from 1 to 40 kg(Whole numbers).
What are the four weights????
Character is who you are when no one is looking.
#2 2005-07-05 02:15:55
- mathsyperson
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Re: Try this one!
I think I've seen that one somewhere on this site before, but anyway, I've done this before so I won't say.
Why did the vector cross the road?
It wanted to be normal.
#3 2005-07-05 08:34:27
- MathsIsFun
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Re: Try this one!
Ummm ... 1kg, and ...
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
#4 2005-07-07 20:17:28
- ganesh
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Re: Try this one!
1, 3, 9, and 27 kg
1 kg can be directly weighed
3-1=2, (Which means putting 3kg on the left pan and 1kg on the right,
2kg of material can be got)
3 can be directly weighed,
3+1=4,
9-(3+1)=5,
9-3=6,
(9+1)-3=7,
9-1=8,
9 can be directly weighed,
9+1=10
and so on.
Character is who you are when no one is looking.
#5 2005-07-07 20:47:10
- MathsIsFun
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Re: Try this one!
You solved it too quickly !
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
#6 2005-07-07 20:47:54
- MathsIsFun
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Re: Try this one!
You solved it too quickly !
Some of us are a bit s....l...o....w 
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
#7 2012-05-03 10:26:20
- anonimnystefy
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Re: Try this one!
Agreed,MIF. Some of us are so slow,that we reply 7 years later.
The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón