A and B together can finish a bit of work in 12 days, B and C can do it in 20 days and C and A do it 15 days. A, B and C together can finish it in

A and B together can finish a bit of work in 12 days, B and C can d

1.	A and B together can finish a bit of work in 12 days, B and C can do it in 20 days and C and A do it 15 days. A, B and C together can finish it in
A.	6 days
B.	9 days
C.	10 days
D.	21/2 days
Answer» D. 21/2 days

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A and B together can finish a bit of work in 12 days, B and C can do it in 20 days and C and A do it 15 days. A, B and C together can finish it in

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