If y is the smallest positive integer such that 3,150 multiplied by y is the square of an integer, then y must be A. 2 B. 5 C. 6 D. 7 E. 14 Correct Answer: E Full explanation coming soon. Send us a note if you’d like this added to the express queue! You’ll find tons of […]
If n = 38 − 28, which of the following is NOT a factor of n? A. 97 B. 65 C. 35 D. 13 E. 5 Correct Answer: C Full explanation coming soon. Send us a note if you’d like this added to the express queue! You’ll find tons of practice questions, explanations for GMAT Official Guide questions, and
If n = 3⁸ − 2⁸, which of the following is NOT a factor of n? Read the Full Article »
If m−1=−1/3, then m−2 is equal to A. -9 B. -3 C. -1/9 D. 1/9 E. 9 Correct Answer: D Full explanation coming soon. Send us a note if you’d like this added to the express queue! You’ll find tons of practice questions, explanations for GMAT Official Guide questions, and strategies on our GMAT Question of the Day
If m⁻¹=−1/3, then m⁻² is equal to Read the Full Article »
For any positive integer n, the sum of the first n positive integers equals n(n+1)/2. What is the sum of all the even integers between 99 and 301? A. 10,100 B. 20,200 C. 22,650 D. 40,200 E. 45,150 Correct Answer: B Full explanation coming soon. Send us a note if you’d like this added to the
From the consecutive integers –10 to 10, inclusive, 20 integers are randomly chosen with repetitions allowed. What is the least possible value of the product of the 20 integers? A. (-10)20 B. (-10)10 C. 0 D. -(10)19 E. -(10)20 Correct Answer: E Full explanation coming soon. Send us a note if you’d like this added
