SOLUTION: An hour long test has 100 problems. If a student completes 20 problems in 20 minutes, how many seconds does he have on average for completing each of the remaining problems?
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Question 472197: An hour long test has 100 problems. If a student completes 20 problems in 20 minutes, how many seconds does he have on average for completing each of the remaining problems?
Thanks! Answer by edjones(8007) (Show Source):
You can put this solution on YOUR website! 100-20=80 problems remain
60-20=40 minutes remain
80/40 = 2 problems/minute or 30 seconds on average for completing each of the remaining problems.
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Ed
