holmeshg holmeshg

25-03-2015
Mathematics

contestada

Jason can wash and wax his car in 4 hours. His sister does the same thing in 6 hours. If they work together how fast can they wash and wax the car?

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kstarkovich kstarkovich

25-03-2015

Both of them working together it should take them 2 hours to wash and wax the car.

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