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题库 / GMATLA-DS-26
A construction company was paid a total of $500,000 for a construction project. The company’s only costs for the project were for labor and materials. Was the company’s profit for the project greater than $150,000?
(1) The company’s total cost was three times its cost for materials.
(2) The company’s profit was greater than its cost for labor.
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.
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题目没问具体数字，用不等式就可以得出答案
仔细审题，有的是题目相同，但是给的条件不同
数字太大，都缩小1000倍
1）+2）
L+M+P=50, 3M+P=50, P=50-3M>L=2M
50-3M>2M, M15
两个条件联立应当为：P+L+M=500000
条件一：L+M=总成本=3M 所以2M=L,M=L/2
条件二：P>L=2M
P=500000-3M; M
还有一种算法，m>100,000 ,p>2m(
两个条件联立应当为：P+L+M=500000
条件一：L+M=总成本=3M 所以2M=L,M=L/2
条件二：P>L=2M
therefore P+P+P/2>500000 then P>200000
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