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TTGWD-2-22

Q22:

 

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.

  


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.

正确答案选C。搜索了一下,也没有找到,做不出来心里也很纠结。请大家一起讨论。^^

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提示:你可能忽略了一个概念,两个条件联合得到profit小于150k.也是可以得到答案,所以选C

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总款500k中应该包括 利润和成本,

500k=profit(P) +cost(C)

Cost (C)= labor (L)+ material (M)

 条件(1)  C= 3 M=L + M,   L=2M

           C= L + L/2=3L/2  ---àL=2C/

条件(2)P>L  L<

500k=P +C > L +C= 2C/3 +C= 5C/3

 5C/3 < 500k  -à C <300k

500k=P + C --à P >200k -àP >150k

所以(1)+(2)可以推出结论,C正确

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