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
(0.99999999/1.0001) − (0.99999991/1.0003) = A. 10−8 B. 3(10−8) C. 3(10−4) D. 2(10−4) E. 10−4 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
(0.99999999/1.0001) − (0.99999991/1.0003) = Read the Full Article »
If n = (33)43 + (43)33, what is the units digit of n? A. 0 B. 2 C. 4 D. 6 E. 8 Correct Answer: A 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
If n = (33)⁴³ + (43)³³, what is the units digit of n? Read the Full Article »
If p is the product of the integers from 1 to 30, inclusive, what is the greatest integer k for which 3k is a factor of p? A. 10 B. 12 C. 14 D. 16 E. 18 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
