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15 February, 18:42

Jimmy spent 45 minutes to finish his homework. There are 20 problems. What is the average amount of time he spends to finish each problem

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  1. 15 February, 21:34
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    The average is (time) / (number of problems) = (45/60) / 20 = (3/4) / 20=3/80 hours per problem. In minutes, the answer would be 3/80*60=9/4 minutes per problem.
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