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When A alone does a piece of work, he takes 25 days more than the time taken by (A + B) to complete that particular work, while B alone takes 49 days more than the time taken by (A + B) to finish the same work . A and B together will take what time for finish this work?

Correct Answer: 35 days

Explanation:

According to the formula,
Required time = √ab
Where a = 25 and b = 49
∴ Require time = √25 x 49 = 5 x 7
= 35 days


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