A clothing store acquired an item at a cost of x dollars and sold the item for y dollars. The store’s gross profit from the item was what percent of its cost for the item?
(1) y – x = 20 (2) y/x = 5/4
Answer:B A为什么不行呢？
A clothing store acquired an item at a cost of x dollars and sold the item for y dollars. The store’s gross profit from the item was what percent of its cost for the item?
(1) y – x = 20
(2) y/x = 5/4
A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient.
Answer:B
A为什么不行呢？
A clothing store acquired an item at a cost of x dollars and sold the item for y dollars. The store’s gross profit from the item was what percent of its cost for the item?
(1) y – x = 20 (2) y/x = 5/4
Answer:B A为什么不行呢？
题目是问PERCENT, 不是GROSS PROFIT.
(Y-X)/X=Y/X-1,知道条件1还无法求出.
太马虎了。。。辛苦listen了，我的好多题好像都是你回的，谢谢啦，帮助很大
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