At least 100 students at a certain high school study Japanese. If 4 percent of the students at the school who study French also study Japanese, do more students at the school study French than Japanese? (1) 16 students at the school study both French and Japanese. (2) 10 percent of the students at the school who study Japanese also study French.
选B
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 thanits cost for labor.
选C
If each term in the sum a1 + a2 + . . . + an is either 7 or 77 and the sum equals 350, which of thfollowing could be equal to n? (A) 38 (B) 39 (C) 40 (D) 41
(E) 42
选C | 
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发表于 2017-10-21 21:27:03
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