GRE GMAT TESTs AND SOLUTIONs

Suppose five circles, each 4 inches in diameter, are cut from a rectangular strip of paper 12 inches long. If the least amount of paper is to be wasted, what is the width of the paper strip? (A) 5 (B) 4 +2 Sqr 3 (C) 8 (D) 4(1+ Sqr 3) (E) not enough information

What is the greatest prime factor of ((2^4 )^2)−1? (A) 3 (B) 5 (C) 11 (D) 17 (E) 19

How many different ways can 3 cubes be painted if each cube is painted one color and only the 3 colors red, blue, and green are available? (Order is not considered, for example, green, green, blue is considered the same as green, blue, green.) (A) 2 (B) 3 (C) 9 (D) 10 (E) 27