If n is a positive integer and r is the remainder when (n – 1)(n + 1) is divided by 24, what is the value of r? (1) n is not divisible by 2 (2) n is not divisible by 3 A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. B. […]
For all positive integers m, [m] = 3m when m is odd and [m] = (1/2)*m when m is even. What is [9]*[6] equivalent to? A. [81] B. [54] C. [37] D. [27] E. [18] Correct Answer: D Full explanation coming soon. Send us a note if you’d like this added to the express queue!
Is x > 1? (1) (x+1)(|x|−1)>0 (2) |x|<5 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 > 1? Read the Full Article »
On the number line shown, is zero halfway between r and s? (1) s is to the right of zero (2) The distance between t and r is the same as the distance between t and -s A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. B. Statement (2) ALONE is
On the number line shown, is zero halfway between r and s? Read the Full Article »
A. π∗r^2 B. π∗r^2 + 10 C. π∗r^2 + 1/4∗π^2∗r^2 D. π∗r^2 + (40−2π∗r)^2 E. π∗r^2 + (10−1/2π∗r)^2 Here’s another tough geometry question from the GMAT Prep tests 1 and 2. This one comes up a lot in GMAT tutoring sessions even with people excelling on the quant side. Why? People speed through the initial
