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If it takes 4 minutes to cut a log into 4 pieces, how many minutes will it take to cut a log into 3 pieces?

+2 votes
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If it takes 4 minutes to cut a log into 4 pieces, how many minutes will it take to cut a log into 3 pieces?

Assume all cuts are parallel, and cuts are done sequentially (not simultaneously).

posted Jan 5, 2016 by anonymous

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1 Answer

+1 vote

4 Pieces=>3cuts=>4minutes(240sec)
3 Pieces=>2cuts=>x sec
3/240=2/x
x=160 sec =2 min 40sec
ans is 2 min 40 sec

answer Jan 5, 2016 by Jaikumar Bhatia
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Yes its correct
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