P and Q together can complete some work in 30 days. Q and R together can do the same work in 24 days. R and P together will take 20 days to complete it. If they all work together, in how many days will the job get done?

P and Q together can complete some work in 30 days. Q and R together c

1.	P and Q together can complete some work in 30 days. Q and R together can do the same work in 24 days. R and P together will take 20 days to complete it. If they all work together, in how many days will the job get done?
A.	25
B.	8
C.	15
D.	16
Answer» E.

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P and Q together can complete some work in 30 days. Q and R together can do the same work in 24 days. R and P together will take 20 days to complete it. If they all work together, in how many days will the job get done?

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