A can finish a work in 24 days, B in 36 days, and C in 48 days. If they all work together, how long

A. 8

B. 10

C. 12

D. 14

E. None of the above

Answer: C. 12

Their combined work rate is 1/24 + 1/36 + 1/48 = 1/8. Therefore, they will complete the work in 8 days.

Posted in: Time & Work - Aptitude - Mathematics