In a piece of metal, 1/m part plus a oz. is brass, and m/n part minus b oz. is copper. Calculate weight of the piece.
Answer provided with problem:
mn (b - a)
-------------
n + m^2 - mn
Please explain how the answer was obtained.
Guest wrote:In a piece of metal, 1/m part plus a oz. is brass, and m/n part minus b oz. is copper. Calculate weight of the piece.
Answer provided with problem:
mn (b - a)
-------------
n + m^2 - mn
Please explain how the answer was obtained.
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