A and B can do a work in 12days, B and C in 15days, C and A in 20days. If A, B and C work together,They will complete the work in:

A and B can do a work in 12days, B and C in 15days, C and A in 20days. If A, B and C work together,They will complete the work in:

A 5 days

B 7 (5/6) days

C 10 days

D 15 (2/3) days

Solution

Correct Answer: Option C