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2013年4月新gre考试:猴哥教你解gre数学难题(3)

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2013-04-11 15:43

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  26. How many times between 1971 and 1991 did the price of a Brand x candy bar increase while the weight decreased?

  A. one B. two C. three D. four E. five

  27. Of the 500 delegates attending a convention, 200 are Republicans and the rest are Democrats. One hundred of the delegates are vegetarians and, of those who are not vegetarians, 270 are Democrats. How many of the vegetarian delegates are Republicans?

  A.30 B.40 C.50 D.60 E.70

  28.S is a set of n consecutive integers.

  Column A: The mean of S

  Column B: The median of S

  answer:C

  29.An airline must charge an 11 percent tax on the price of an airline ticket. The airline wishes to charge the whole-dollar amount of $433.00 for the ticket, including the tax. What price, to the nearest $0.01, should the airline set for the ticket before the tax is added?

  A.$385.37 B.389.70 C.390.09 D.393.64 E.422.00

  30.From the probability histogram, what is the probability that x is either 1 or 2?

  A.0.35 B.0.45 C.0.50 D.0.70 E.0.75


 

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