It is difficult to understand where a majority of the number

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It is difficult to understand where a majority of the numbers are derived from in step 3. First where was the 288R derived from? Secondly where was the 615.38 R derived from?

Reference no: EM13664211

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It is difficult to understand where a majority of the number : It is difficult to understand where a majority of the numbers are derived from in step 3. First where was the 288R derived from? Secondly where was the 615.38 R derived from?
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