Chan and Micko drove separate cars along the entire length of a certain route. If Chan made the trip in 15 minutes, how many minutes did it take Micko to make the same trip ? (1) Micko’s average speed for the trip was of Chan’s average speed. (2) The route is 14 miles long. A) [...]

A group of 8 friends want to play doubles tennis. How many different ways can the group be divided into 4 teams of 2 people? A. 420 B. 2520 C. 168 D. 90 E. 105

If r, s, and t are positive integers, is r + s + t even? (1) r + s is even. (2) s + t is even. A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. C. BOTH [...]

What is the value of x^5 ? (1) x^2 = 9 (2) x^3 > 9 A) Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. B) Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. C) BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient. D) EACH [...]

What is the standard deviation of Q, a set of consecutive integers? (1) Q has 21 members. (2) Q has 20 members A) Statement 1 alone is sufficient but statement 2 alone is not sufficient to answer the question asked. B) Statement 2 alone is sufficient but statement 1 alone is not sufficient to answer [...]

Machine M can produce x units in 3 / 4 of the time it takes machine N two produce x units. Machine N can produce x units in 2 / 3 the time it takes machine O two produce x units. If all three machines are working simultaneously, what fraction of the total output is [...]

Tom, Jane, and Sue each purchased a new house. The average (arithmetic mean) price of the three houses was $120,000. What was the median price of the three houses? (1) The price of Tom’s house was $110,000. (2) The price of Jane’s house was $120,000. A. Statement (1) ALONE is sufficient, but statement (2) alone [...]

In 1980, approximately what fraction of the cost to the consumer for the production of 6 ounces of frozen orange juice went to the farmer? (A) 3/11 (B) 1/3 (C) 4/9 (D) 5/9 (E) 3/5

If x, y, and k are positive numbers such that (x/(x+y) (10) + (y/(x+y) (20) = k and if x < y, which of the following could be the value of k? A) 10 B) 12 C) 15 D) 18 E) 30

At a certain business school, 400 students are members of the sailing club, the wine club, or both. If 200 students are members of the wine club and 50 students are members of both clubs, what is the probability that a student chosen at random is a member of the sailing club? A. 1/2 B. [...]

Vertices of a quadrilateral ABCD are A(1,1), B(5,6), C(10,10) and D(6,5). What is the shape of the quadrilateral? A. Square B. Rectangle but not a square C. Rhombus D. Parallelogram but not a rhombus E. None of these

The number of ways in which three letters be posted in four letter boxes in a village, if all the three letters are not posted in the same letter box. A) 64 B) 60 C) 81 D) 78 E) None of these

A store sells newspaper A at price of $1 and B at price of $1.25. In a certain day, if r percent of the total income is from A, and p percent of the total copies sold are A, in terms of r, p=?

A ladder 25 feet long is leaning against a wall that is perpendicular to level ground. The bottom of the ladder is 7 feet from the base of the wall. If the top of the ladder slips down 4 feet, how many feet will the bottom of the ladder slip? (A) 4 (B) 5 (C) [...]