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Games, Puzzles and Quizzes

New kid on the Block

Joined:	21 Dec 2007
Post:	23

31 Dec 2007 23:22:35 IST

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542

logical

None

You have a balance of pans and you need to weigh every integer weight from 1 kg to 40 kg. What's the minimum number of known weights you need to use? What are their mass?

tricky but easy try urself

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Comments (2)

Nadeem

Blazing goIITian

Joined: 25 Aug 2007

Posts: 521

31 Dec 2007 23:50:13 IST

Like 0 people liked this

4 weights . 1,3,9,27

suhail

Cool goIITian

Joined: 23 Mar 2008

Posts: 69

7 Jun 2008 21:46:39 IST

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its a popular problem called batchet's weight problem. the weights are 1,3,9,27

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