For every positive even integer n, the function h(n) is defined to be the product of all the even integers from 2 to n, inclusive. If p is the smallest prime factor of h(100) +1, then p is? A. Between 2 and 20 B. Between 10 and 20 C. Between 20 and 30 D. Between […]
If n and y are positive integers and 450y=n^3, which of the following must be an integer? I. y/3∗2^2∗5 II. y/3^2∗2∗5 III. y/3∗2∗5^2 A. None. B. I only. C. II only. D. III only. E. I, II, and III Correct Answer: B Full explanation coming soon. Send us a note if you’d like this added
Pumps A, B, and C operate at their respective constant rates. Pumps A and B, operating simultaneously, can fill a certain tank in 6/5 hours; pumps A and C, operating simultaneously, can fill the tank in 3/2 hours; and pumps B and C, operating simultaneously, can fill the tank in 2 hours. How many hours
A. 38 B. 39 C. 40 D. 41 E. 42 Stumped by this GMAT sequence puzzle from the GMAT Prep tests 1 and 2? We’ve got you covered! We’ll do a quick overview on sequences so you have a sense for what this means: If each term in the sum a1 + a2 + a3
Of the 60 animals on a certain farm, 2/3 are either pigs or cows. How many of the animals are cows? (1) The farm has more than twice as many cows as pigs (2) The farm has more than 12 pigs A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. B.
