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1. |
Q: 9 men and 12 boys finish a job in 12 days, 12 men and 12 boys finish it in 10 days. 10 men and 10 boys shall finish it in how many days ? |
A. | 15 days |
B. | 11 days |
C. | 14 days |
D. | 12 days |
Answer» E. | |