A, B and C can complete a piece of work in 24, 6 and 12 days respectively. Working together, they will complete the same work in how many days?
A. 1/24 Day
B. 7/24 days
C. 24/7 days
D. 4 days
Sol:
(A+B+C)’s 1 day’s work = ( 1/24 + 1/6 +1/12) = 7/24
So, A, B and C together will complete the job in 24/7 days.
