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A forms a wall in 10 days and B forms it in 15 days. A and B start the work of forming wall together...

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A forms a wall in 10 days and B forms it in 15 days. A and B start the work of forming wall together but after 2 days A leaves the work. How many days are required for making the remaining wall by B?

posted Mar 3, 2016 by anonymous

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