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Wendy can wash a car twice as fast as Jason. When they work together, Wendy and Jason can wash a large van in 2 hours. How many hours would it take Jason to wash the van by himself?
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j rate of jason (j + 2j)2 = 1 j = 1/6 so 1/(1/6) = 6 hrs
the choices are 5,4,3,2.. @sourwing
then it doesn't contain 6hrs
huh? @sourwing
@***[ISURU]*** can you help??
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