The subsets of the set {w, x, y} are {w}, {x}, {y}, {w, x}, {w, y}, {x, y}, {w, x,y}, and { } (the empty subset). How many subsets of the set {w, x, y, z} contain w ? (A) Four(B) Five(C) Seven(D) Eight(E) Sixteen In this case you could figure out the number based … Read More
GMAT Number of Factors: How to Count the Possible Divisors of a Number One of the recent additions to the GMAT content sphere is questions that ask you to count the total number of factors of a number rather than simply the number of prime factors. That is, all factors, not just the prime ones. … Read More
Can You Use a Caclulator on the GMAT ? And Why This Matters The short answer to this question is NO. 100% you cannot use a calculator on the Quant section of the GMAT. It’s a bit like asking whether you can use ChatGPT on the Verbal section (again, the answer is NO). The more … Read More
If x<8/5, which of the following could be greater than 1? That is, If , which of the following could be greater than 1? I. 60 percent of x II. 0.125 times 2x III. 1/x percent of 16x A. None B. I only C. II only D. III only E. I and III This type … Read More
The owner of an apartment purchased 1 window screen, 1 door handle, and 1 ceiling fan for her apartment. The regular price of the window screen was 80% greater than the regular price of the door handle, and the regular price of the ceiling fan was twice the sum of the regular prices of the … Read More
Kesha paid a sales tax of x percent on her purchase. If the sales tax had only been 2 percent, she would have paid $27 less in sales tax on her purchase. What was the value of x if the total amount Kesha paid for her purchase, including sales tax, was $486? (A) 8 (B) … Read More
If x is a multiple of 18 and 60, then x must be divisible by which of the following? I. 24 II. 36 III. 45 (A) I only (B) II only (C) I and II only (D) II and III only (E) I, II and III What we need to concern ourselves here is the … Read More
If 5 integers are to be selected at random and without replacement from the list consisting of the 20 integers from 1 to 20, inclusive, what is the probability that 2 of the 5 selected integers will be 10 and 20 ? A. 2/5 B. 1/4 C. 1/10 D. 1/19 E. 1/60 OK, I’ll be … Read More
Does the GMAT Repeat Questions? Understanding the Test, Its Content, and How to Prepare Does the GMAT repeat questions? It’s natural to wonder. After all, if you could spot familiar questions during the exam, you might save time and improve accuracy. But the reality of how the GMAT works is more complex… In this article … Read More
Five Reasons Using a Calculator Is a Waste of Time on the GMAT or GRE We are taught since grade school that there’s no point to mental math when a machine can do calculations faster and more accurately than our brains. That might be true for the puny brains of your math teachers, but the … Read More