Q31: You are having 31kg of rice. You are provided with a 1kg stone for weighing. In how many weights the 31kg of rice can be weighed. A. 6 B. 34 C. 63 D. 5
Last edited by mr fantastic; Feb 11th 2011 at 02:41 AM.
Reason: Re-titled, deleted excessive ?'s in post.
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HINT: after 1st weighing, you have a 1kg stone and 1kg of rice to use in next weighing.
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