Q.1. 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.
Q.2. A and B can do a piece of work in 12 days. B and C in 15 days and C and A in 20 days, If A, B and C work together, they will complete the work in:
Q.3. A and B can do a piece of work in 10 days, B and C in 15 days and C and A in 20 days, C alone can do the work in :
(A) 60 days
(B) 120 days
(C) 80 days
(D) 30 days
Q.4. A can do a piece of work in 4 hours; B and C can do it in 3 hours. A and C can do it in 2 hours. How long will B alone take to do it ?
(A) 10 hours
(B) 12 hours
(C) 8 hours
(D) 24 hours
Q.5.A can complete a piece of work in 6 days while B can complete the same work in 12 days. If they work together and complete it, the portion of the work done by A is
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