SOLUTION: working separately, 4 students can do 80 math problems in one hour. at this rate, how many math problems can 8 students do in 3 hours?

SOLUTION: working separately, 4 students can do 80 math problems in one hour. at this rate, how many math problems can 8 students do in 3 hours?

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Question 827893: working separately, 4 students can do 80 math problems in one hour. at this rate, how many math problems can 8 students do in 3 hours?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
4*1=4
4 man hours for 80 problems
20 problems per man hour
3*8=24 man hours
24*20=480 problems

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