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题库 / Prep2007E1-DS-50
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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条件一可以得出所有成本＝３＊材料费，另根据题目，所有成本＝劳动力成本＋材料费，那么可以推出劳动力成本＝２＊材料费；
条件二可以得出利润＞劳动力成本，那么利润=500000-所有成本=500000-劳动力成本-材料费〉劳动力成本，结合条件一所得的劳动力成本=2*材料费。可以推出5*材料费〈500000，那么材料费〈100000，所有成本〈300000，可以得出利润肯定大于150000，可以肯定回答问题。
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