The rates of working of A and B are in the ratio 3 : 4.

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The rates of working of A and B are in the ratio 3 : 4. The number of days taken by them to finish the work are in the ratio ?

1. 3 : 4
2. 9 : 16
3. 4 : 3
4. None of these

Correct Option: C

Radio of times taken = (1/3) : (1/4) = 4 : 3