SOLUTION: alice can wash he car in 3 and 1/2 hours if bernice helped her she can do the job in 2 hours. how long would it take if bernice working alone?
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Question 919599: alice can wash he car in 3 and 1/2 hours if bernice helped her she can do the job in 2 hours. how long would it take if bernice working alone?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
|Multiplying thru by 14x so as all denominators = 1
2x + 14 = 7x
14 = 5x
14/5 = x = 2.8 hr
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