The perimeter of a certain isosceles right triangle is 16+16√2. What is the length of the hypotenuse of the triangle? (A) 8 (B) 16 (C) 4√2 (D) 8√2 (E) 16√2 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 […]
If m, p, s and v are positive, and m/p<s/v, which of the following must be between m/p and s/v I. m+s/p+v II. ms/pv III. s/v−m/p A. None B. I only C. II only D. III only E. I and II both Correct Answer: B Full explanation coming soon. Send us a note if you’d
A certain list consists of 21 different numbers. If n is in the list and n is 4 times the average(arithmetic mean) of the other 20 numbers in the list, then n is what fraction of the sum of the 21 numbers in the list? (A) 1/20 (B) 1/6 (C) 1/5 (D) 4/21 (E) 5/21
Is ((x-3)^2)^(1/2) = 3-x? (1) x≠3 (2) −x|x|>0 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 statement ALONE is sufficient. E. Statements (1)
Is ((x-3)^2)^(1/2) = 3-x? Read the Full Article »
An integer n between 1 and 99, inclusive, is to be chosen at random. What is the probability that n(n+1) will be divisible by 3? (A) 1/9 (B) 1/3 (C) 1/2 (D) 2/3 (E) 5/6 Correct Answer: D Full explanation coming soon. Send us a note if you’d like this added to the express queue!
