1. | A works twice as fast as B. If B can complete a work in 12 days independently, the number of days in which A and B can together finish the work in : |
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Answer: Option A Explanation: Ratio of rates of working of A and B = 2 : 1. So, ratio of times taken = 1 : 2.
So, A and B together can finish the work in 4 days. |

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