GRE Question Of the DAY! A machine can manufacture 20 cans per - TopicsExpress



          

GRE Question Of the DAY! A machine can manufacture 20 cans per hour, and exactly 10 such cans fit into every box. Maria packs cans in boxes at a constant rate of 3 boxes per hour. If the machine ran for 2 hours and was then turned off before Maria started packing the cans in boxes, how many minutes would it take Maria to pack all the cans that the machine had made? (A) 40 (B) 45 (C) 80 (D) 160 (E) 800
Posted on: Thu, 01 May 2014 07:15:01 +0000

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