shankar.ashwin wrote:A certain juice manufacturer increased the number of ounces in Product N by 25 percent but did not change the price. What was the resulting percent decrease in the price per ounce of Product N?
(A) 10%
(B) 20%
(C) 25%
(D) 30%
(E) 35%
4 ounces at $5 per ounce = 4*5 = $20.
The number of ounces increased by 1/4 = 4 + (1/4)4 = 5.
5 ounces at the same price = 20/5 = $4 per ounce.
Percent decrease in price per ounce = (5-4)/5 * 100 = 20%.
The correct answer is
B.
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