

MCQOPTIONS
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1. |
X does half as much work as Yand Z does half as much work as X and Y together. If Z alone can finish thework in 120 days, then together ,all will finish the work in ? |
A. | 20 |
B. | 30 |
C. | 40 |
D. | 50 |
Answer» D. 50 | |