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A boy sells apples for 12 cents each and pears for 7 cents each.Suppose the boy collected $3.21.How many apples and pears did he sell?

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$1 = 100 cents , so, $3.21 = 321 cents 

Multiple Answers possible :

   eg1:   4 apples , 39 pears

    eg2: 11 apples, 27 pears

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