

MCQOPTIONS
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1. |
The rates of working of A and B are in the ratio of 2 : 3. The number of days taken by each of them to finish the work is in the ratio : |
A. | 2 : 3 |
B. | 4 : 9 |
C. | 3 : 2 |
D. | 9 : 4 |
Answer» D. 9 : 4 | |