All About Gold

October 18, 2009

How many ounces of each were used to make 50 ounces of gold alloy costing $250 per ounce?

Filed under: Mathematics — Tags: , , — @ 9:01 pm

A goldsmith combined pure gold that cost $400 per ounce with an alloy of gold that cost $150 per ounce. How many ounces of each were used to make 50 ounces of gold alloy costing $250 per ounce?

Kai

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