SOLUTION: Marlo dug a ditch in one hour and his
daughter, Maeryll, can dig the same size ditch in two hours. Working together, how
long will it take them to dig the ditch?
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-> SOLUTION: Marlo dug a ditch in one hour and his
daughter, Maeryll, can dig the same size ditch in two hours. Working together, how
long will it take them to dig the ditch?
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Question 1150037: Marlo dug a ditch in one hour and his
daughter, Maeryll, can dig the same size ditch in two hours. Working together, how
long will it take them to dig the ditch?
You can put this solution on YOUR website! in a minute Marlo can dig 1/60th of a ditch and Maeryll can dig 1/120 th of a ditch.
in x minutes they dig the whole thing
(x/60)+(x/120)=1
mutliply by 120 both sides
2x+x=120
x=40 minutes or 2/3 of an hour.
