SOLUTION: Brown makes a 10% profit on a $200 sale, Jones makes a 5% on $200 sale, and Smith makes a 15% on a $400 sale. What is the average value of profits made by brown, smith, and jones

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Question 433020: Brown makes a 10% profit on a $200 sale, Jones makes a 5% on $200 sale, and Smith makes a 15% on a $400 sale. What is the average value of profits made by brown, smith, and jones?
Answer by ewatrrr(24785) About Me  (Show Source):
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Hi

Brown makes a 10% profit on a $200 sale, 

Jones makes a 5% on $200 sale, 

and Smith makes a 15% on a $400 sale

What is the 'average' value of profits made by brown, smith, and jones?

 (.10*$200 + .05*$200 ++ .15*$400)/3 = ($20+$10+$60)/3 = $30