Blog

What is the sum of all of the roots of (2x+3)(x-4)+(2x+3)(x-6)=0 ?

(A) 7/2 (B) 4 (C) 5 (D) 7 (E) 13

ANSWER: A

There are 3 numbers A,B,and C, such that 1001C-2002A=4004, and 1001B+3003A=5005. What is the average of A,B,and C?

(A) 1 (B) 3 (C) 6 (D) 9 (E) Not uniquely determined

ANSWER: B

From a starting number, Cindy was supposed to subtract 3, and then divide by 9, but instead, Cindy subtracted 9, then divided by 3, getting 43. If the correct instructions were followed, what would the result be ?

(A) 15 (B) 34 (C) 43 (D) 51 (E) 138

How many positive integers not exceeding 2001 are multiples of 3 or 4 but not 5?

(A) 768 (B) 801 (C) 934 (D) 1067 (E) 1167

ANSWER: B

A box contains exactly five chips, three red and two white. Chips are randomly removed one at a time without replacement until all the red chips are drawn or all the white chips are drawn. What is the probability that the last chip drawn is white?

(A) 3/10 (B) 2/5 (C) 1/2 (D) 3/5 (E) 7/10

ANSWER: D

A right circular cylinder with its diameter equal to its height is inscribed in a right circular cone. The cone has diameter 10 and altitude 12, and the axes of the cylinder and cone coincide. Find the radius of the cylinder.

(A) 8/3 (B) 30/11 (C) 3 (D) 25/8 (E) 7/2

ANSWER: B

Pat wants to buy four donuts from an ample supply of three types of donuts: glazed, chocolate, and powdered. How many different selections are possible?

(A) 6 (B) 9 (C) 12 (D) 15 (E) 18

ANSWER: D

The mean of three numbers is 10 more than the least of the numbers and 15 less than the greatest. The median of the three number is 5. What is their sum ?

(A) 5 (B) 20 (C) 25 (D) 30 (E) 36

ANSWER: D

A street has parallel curbs 40 feet apart. A crosswalk bounded by two parallel stripes crosses the street at an angle. The length of the curb between the stripes is 15 feet and each stripe is 50 feet long. Find the distance, in feet, between the stripes ?

(A) 9 (B) 10 (C) 12 (D) 15 (E) 25

ANSWER: C

A charity sells 140 benefit tickets for a total of $2001. Some tickets sell for full price (a whole dollar amount), and the rest sells for half price. How much money is raised by the full-price tickets ?

(A) $782 (B) $986 (C) $1158 (D) $1219 (E) $1449

ANSWER: A