A, B and C can do a job in 30, 40 and 48 days respectively. In how many days can A do the work if he is assisted by B and C every third day?

A, B and C can do a job in 30, 40 and 48 days respectively. In how man

1.	A, B and C can do a job in 30, 40 and 48 days respectively. In how many days can A do the work if he is assisted by B and C every third day?
A.	21
B.	20.73
C.	21.14
D.	20.14
Answer» C. 21.14

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A, B and C can do a job in 30, 40 and 48 days respectively. In how many days can A do the work if he is assisted by B and C every third day?

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