SOLUTION: If carol can finish a job in 5 hours and Steve can finish the same job in 10 hours, how many minutes will it take both of them together to finish the job?
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Question 911111: If carol can finish a job in 5 hours and Steve can finish the same job in 10 hours, how many minutes will it take both of them together to finish the job? Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! 1/a+1/b=1/x
1/5+1/10=1/x
10/50+5/50=1/x
15/50=1/x
x=50/15
x=3 1/3 hours which is 200 minutes
check
x/a+x/b=1
x/5+x/10=1
3.33333333/5+3.33333333/10=1
0.66666667+0.33333333=1
1.0=1
ok
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