GRE Exam Dumps : GRE General Test

The units digit of 7 is v. and the units digit of What is the value of the product xy

If the ratio of positive integer x to positive integer y is 4 to 3, then x + y must be a multiple of integer k. where k > I. What is the value of k ?

The sales tax on clothing items in Country A is 25 percent of the purchase price of the item, and the sales tax on clothing items in Country B is 20 percent of the purchase price of the item. If the two countries have the same currency and if the price of a certain clothing item is the same in both countries, what percent greater is the amount of sales tax on the clothing item purchased in Country A than the amount of sales tax on the clothing item purchased in Country B ?