Shingles and Apples - Solution
by
Erik Oosterwal
The large apples were being sold at 3 for a dollar--3/$1 = $0.33333333333
each.
The small apples were being sold at 5 for a dollar--5/$1 = $0.20 each.
The son sold the entire lot at 4 for a dollar--4/$1 = $0.25 each.
The real average between 3 for a dollar and 5 for a dollar is 3 3/4 for a
dollar, or $0.26666666 each.
On average, the son lost 1.6666666 cents for each apple he sold, which he
did 60 times.
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Copyright Erik Oosterwal - 2004
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