2013年GRE数学精选练习题三(2)

  4. From 198 to 1987 the price of a Brand x candy bar increased byapproximately what percent?

  A.40% B.50% C.70% D.150% E.50%

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

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