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1. |
12 men can do a piece of work in 15 days and 20 women can do the same work in 12 days. In how many days can 5 men and 5 women complete the same work ? |
A. | ${\text{20}}\frac{4}{7}{\text{ days}}$$ |
B. | ${\text{2}}\frac{4}{7}{\text{ days}}$$ |
C. | ${\text{20}}\frac{3}{7}{\text{ days}}$$ |
D. | 8 days |
Answer» B. ${\text{2}}\frac{4}{7}{\text{ days}}$$ | |