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题库 / Prep2007E2-DS-4
The sale price of a certain jacket was 15 percent less than its original price, and the sale price of a certain shirt was 10 percent less than its original price. How much greater was the original price of the jacket than the original price of the shirt?
(1) The sale price of the jacket was $83 greater than the sale price of the shirt.
(2) The original price of the jacket was $140.
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
还没有题目讲解（毕出老师会陆续发布对官方考题的解读，请保持关注）。
有条件一只能得出 83=0.85J1-0.9S1；但是即使这样也不知道J1比S1大多少；
条件二 知道J1
所以联立就可以