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How to weigh any weight from 1 to 40 using four weights whose sum is 40KG?

+2 votes
1,487 views

A merchant has a 40 kg weight which he used in his shop. Once, it fell from his hands and was broken into 4 pieces. But surprisingly, now he can weigh any weight between 1 kg to 40 kg with the combination of these 4 pieces.

So question is, what are weights of those 4 pieces..?

posted Apr 10, 2015 by Sreejith Pottathil

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1 Solution

+3 votes
 
Best answer

1+3+9+27=40
9-3+1=5
9-3=6
9+1-3=7
9-1=8
9+3-1=11
27-9-3-1=14
etc
etc

solution Apr 13, 2015 by anonymous



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