SOLUTION: five students were given a page of problems with the instructions to solve as many as they could in one hour. Five students solved the following number of problems: 12, 10, 8, 6 an

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Question 316650: five students were given a page of problems with the instructions to solve as many as they could in one hour. Five students solved the following number of problems: 12, 10, 8, 6 and 4. what is the arithmatic mean number of minutes required per problem?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
First, find the average minutes per question for each student.
M=60%2FP
5,6,7.5,10,15
Now take the average for the 5 students,
A=%285%2B6%2B7.5%2B10%2B15%29%2F5=8.7+ minutes per problem