Asked by Amberlyn
James can detail a car by himself in 60 minutes. Manny does the same job in 55 minutes. How long will it take them to detail a car working together
Answers
Answered by
Steve
1/x = 1/60 + 1/55
x = 660/223
So, it will take them about 28.7 minutes.
Sounds right, since their times are so close, it would just about cut the time in half, working together.
x = 660/223
So, it will take them about 28.7 minutes.
Sounds right, since their times are so close, it would just about cut the time in half, working together.
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