How long would it take beth to do the house by herself

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Beth, Bill, and Eddie together work 6 hours. Then, Bill and Eddie do it in 9. Beth, Bill, and Eddie work 3 hours together. Beth and Bill spent 6 hours more. How long would it take Beth to do the house by herself? Eddie to do the house by herself? Bill to do a house by himselF?

Reference no: EM13201046

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