Math

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For \$4.50 a grocer buys a case of fruit which contains 14 dozen. She knows that 4 dozen will spoil before she sells them. At what price per dozen must she sell the good ones to gain 1/3 of the whole cost?
is there any quick way to do this question.

• Math -

(1/3) * \$4.50 = \$1.50. = Income.

P = \$1.50 / (14-4) = \$0.15 / doz.

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