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A store sells a certain product at a fixed price per unit. At the product's current price, \(q\) units cost a total of

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by Gmat_mission » Thu Jul 02, 2020 1:47 am
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A store sells a certain product at a fixed price per unit. At the product's current price, \(q\) units cost a total of exactly \(\$300.\) If the price were lowered by \(\$5\) from its current value, then \(q + 2n\) units would cost exactly \(\$300;\) if the price were raised by \(\$5,\) then \(q - n\) units would cost exactly \(\$300.\) What is the value of \(q?\)

A. 10
B. 15
C. 20
D. 25
E. 30

[spoiler]OA=C[/spoiler]

Source: Manhattan GMAT
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