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5. X and Y together can do a piece of work in 8 days, where as X alone can do it in 12 days
many days can Y do the same work alone?
(1) 12 days
121 21 dau
12126
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Answer :

Answer:

Stp-by-step explanation:let y works alone in m days.

1/12+1/m =1/8

m = 24 days

Y alone do the same work in 24

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