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1. |
'A' can do a piece of work in 2 hours, 'B' can do thrice the work in 8 hours and C can do the same work as 'A' in 8 hours. If all of them work together, how long it would take them to complete the work ? |
A. | 1 hour |
B. | 2 hour |
C. | 3 hour |
D. | 4 hours |
Answer» B. 2 hour | |