幾道簡單的GRE數(shù)學(xué)題
1 two successive discounts of 20 percent and 40 percent are equivalent to a single discount of x percent.
x52
2 the number of ¼-inch lengths in a 4-inch length1
3 the number of inches in the perimeterthe number of square inches in the area of a square region
of a square region with side of s incheswith side of s inches
4 A total of $480 is in a certain cash register. All of the money is in one-dollar and five-dallar bills, and there are 30 more one-dollar bills than five-dollar bills.
the sum of 30 and the number of 105
five-dollar bills in the cash register.
5 the number of the longest between the number of integers between 6 and 126
15 and 51 that are squares of integers.that are cubes of integers.
6 the maximum number of solid cubes having 4
edges of length ½ meter that can be placed
inside a cubical box having inside edges of length
1 meter.
7 Ms.Smith got an 8 percent cost-of-living raise of $20 per week,
Ms.Smith's new weekly salary $260