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May 25, 2015

Homework Help: maths

Posted by sagar on Thursday, June 7, 2012 at 4:07am.

a man has one kind of coffee at 'a' paise per kg and another at 'b' paise per kg.how much of each must he take to form a mixture of (a-b)kg, which he can sell at 'c' paise per kg without loss.

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