最新gre猴哥數(shù)學(xué)難題解析(三).

　　下面為大家總結(jié)了最新的gre猴哥數(shù)學(xué)難題。有很多gre考生對(duì)gre數(shù)學(xué)考試十分苦惱，其實(shí)最有效的方法就是多練習(xí)，把數(shù)學(xué)基礎(chǔ)知識(shí)記牢，這樣才能在考試中對(duì)答如流。而gre數(shù)學(xué)考試中也會(huì)出現(xiàn)一些難題，想拿高分也十分不容易。

　　21.[x] represents the greatest integer less than or equal to x and [x] represents the least integer greater than or equal to x.

　　Column A:{[1.4]+[1.4]}/2

　　Column B: 1.4

　　22. If the actual temperature is 13 degrees Fahrenheit and the wind speed is 14 miles per hour, then the apparent temperature could be

　　A.5 degrees Fahrenheit B.-12 degrees Fahrenheit C.-20 degrees Fahrenheit

D.-25 degrees Fahrenheit E.-32 degrees Fahrenheit

　　23. Which of the following can be inferred from the table?

　　(1).The apparent temperature for an actual temperature of 20 degrees Fahrenheit and a wind speed of 15 miles per hour is the same as that for an actual temperature of 30 degrees Fahrenheit and a wind speed of 40 miles per hour.

　　(2).At a constant wind speed, as the actual temperature increases, the difference between the actual and the apparent temperatures also increases.

　　(3).At a constant actual temperature of -10 degrees Fahrenheit, the apparent temperature decreases at a constant rate as the wind speed increases.

　　A. (1)only B.(2)only C.(1)and(3)only D.(2)and(3)only E.(1)(2)and(3)

　　24. From 1982 to 1987 the price of a Brand x candy bar increased by approximately what percent?

　　A.40% B.50% C.70% D.150% E.250%

　　25. 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

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

　　A. oneB. 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 bore 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

　　下面為大家總結(jié)了最新的gre猴哥數(shù)學(xué)難題。有很多gre考生對(duì)gre數(shù)學(xué)考試十分苦惱，其實(shí)最有效的方法就是多練習(xí)，把數(shù)學(xué)基礎(chǔ)知識(shí)記牢，這樣才能在考試中對(duì)答如流。而gre數(shù)學(xué)考試中也會(huì)出現(xiàn)一些難題，想拿高分也十分不容易。

　　21.[x] represents the greatest integer less than or equal to x and [x] represents the least integer greater than or equal to x.

　　Column A:{[1.4]+[1.4]}/2

　　Column B: 1.4

　　22. If the actual temperature is 13 degrees Fahrenheit and the wind speed is 14 miles per hour, then the apparent temperature could be

　　A.5 degrees Fahrenheit B.-12 degrees Fahrenheit C.-20 degrees Fahrenheit

D.-25 degrees Fahrenheit E.-32 degrees Fahrenheit

　　23. Which of the following can be inferred from the table?

　　(1).The apparent temperature for an actual temperature of 20 degrees Fahrenheit and a wind speed of 15 miles per hour is the same as that for an actual temperature of 30 degrees Fahrenheit and a wind speed of 40 miles per hour.

　　(2).At a constant wind speed, as the actual temperature increases, the difference between the actual and the apparent temperatures also increases.

　　(3).At a constant actual temperature of -10 degrees Fahrenheit, the apparent temperature decreases at a constant rate as the wind speed increases.

　　A. (1)only B.(2)only C.(1)and(3)only D.(2)and(3)only E.(1)(2)and(3) 上123下

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