OG 2016 Tracker >>> OG2016 Problem Solving Video Solutions (OG Practice)



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OG2016 PS Practice #137.
At a certain fruit stand, the price of each apple is 40 cents and the price of each orange is 60 cents. Mary selects a total of 10 apples and oranges from the fruit stand, and the average (arithmetic mean) price of the 10 pieces of fruit is 56 cents. How many oranges must Mary put back so that the average price of the pieces of fruit that she keeps is 52 cents?
(see OG book)
(see OG book)
(see OG book)
(see OG book)
(see OG book)

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