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主题：[The Official SAT Question of the Day™] December 20th Saturday

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A person bought 12 cards for 30 cents. If the next day the price of the cards was 5 cents each, how much did the person save per card by buying at the earlier price?
A. 2 cents
B. 2

cents
C. 3 cents
D. 3

cents
E. 5 cents

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SAT题目：http://apps.collegeboard.com/qotd/question.do

楼主 Date: 2008-12-20 16:38:07

jasontomonaga

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Hint : You need to find the price per card on each of the two days, and then you can find the difference between the two prices.

沙发 Date: 2008-12-20 16:38:59

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Correct Answer: B

Here's Why: You can find the savings per card by subtracting the price per card on the earlier day from the price per card on the later day. Since 12 cards cost 30 cents on the earlier day, the price per card was 30 ÷ 12, or 2 cents. The price per card on the later day was 5 cents, so 5 cents – 2 cents = 2 cents is the amount saved per card by buying at the earlier price.
Difficulty: Easy
Question Type: Standard Multiple Choice
(Mathematics)

板凳 Date: 2008-12-20 16:40:58

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