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August 31, 2015

Homework Help: problem solving - math

Posted by confused on Thursday, October 3, 2013 at 11:50pm.

timothy owns 13 chains, each chain having 3 links. timothy wants to use all the small chains to make one circular chain of 39 links. he needs 4 minutes to cut open a link and 10 minutes to close it by smoldering. timothy makes the big chain in 140 minutes. how?

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