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In a new gold mining area in Southern Leyte, the ore contains on the average of...

In a new gold mining area in Southern Leyte, the ore contains on the average of ten ounces of gold per ton. Different methods of processing are tabulated as follows:

Processing Method Cost Per Ton % Recovery

A PHP 5,500 90

B PHP 2,500 80

C PHP 400 70

If gold can be sold at Php 4,000/ounce, which method of processing is the most economical?

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