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Q)

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 to finish this work?

Explanation

Here we can use the formula, $\sqrt{ab}$

here a=25, b=49

$=\sqrt{25\times 49}\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}=5\times 7=35days$

**Hence option A is the correct **

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