SOLUTION: Frankenstein can scare all the town people in 12 hours. The wolf man can scare them all in 9 hours. How long will it take to scare all the town people if they work together on the

Question 1160098: Frankenstein can scare all the town people in 12 hours. The wolf man can scare them all in 9 hours. How long will it take to scare all the town people if they work together on the same time ?
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
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How long will it take to scare all the town people if they work together on the same time ?
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Better, this way:
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How long will it take for both working together to scare all the town people
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