Here are fifteen challenging questions for GMAT math practice with explanations. Can you keep the GMAT Quant pace, doing these in under 90 seconds each?

# Archive | Sets

## GMAT Practice Problems: Sets

Here are four reasonably challenging problems about sets. 1) At a certain school of 200 students, the students can study French, Spanish, both or neither. Just as many study both as study neither. One quarter of those who study Spanish also study French. The total number who study French is 10 fewer than those who […]

## Difficult GMAT Counting Problems

Here are a few 800+ counting problems. Yes, that’s right, 800+, which means, as hard as (or possibly harder than) anything you will see on the GMAT. If you can do these, you are in great shape! 1) How many four digit numbers have no repeat digits, do not contain zero, and have a sum […]

## GMAT Quant: Practice Problems with Percents

First, here are eight practice problems exploring typical GMAT percent themes. 1. The original price of a suit is $200. The price increased 30%, and after this increase, the store published a 30% off coupon for a one-day sale. Given that the consumers who used the coupon on sale day were getting 30% off the […]

## Inclusive Counting on the GMAT

Understand this common type of special counting on the GMAT! Question #1: On Monday, there were 29 bananas in the cafeteria. No new bananas were brought in after Monday. Two days later, on Wednesday, there were 14 bananas left. How many were eaten in that time? Question #2: In January of last year, MicroCorp start-up […]

## GMAT Sets: Venn Diagrams

Learn this technique to master set questions of GMAT Quant word problem. Practice questions First, try these challenging practice questions. 1) Of the 80 houses in a development, 50 have a two-car garage, 40 have an in-the-ground swimming pool, and 35 have both a two-car garage and an in-the-ground swimming pool. How many houses […]

## GMAT Sets: Double Matrix Method

Learn this powerful method for unlocking devilishly complicated problems about sets. Practice questions First, try these challenging 700-level practice questions. 1) At Veridux Corporation, there are 250 employees. Of these, 90 are female, and the rest are males. There are a total of 40 managers, and the rest of the employees are associates. If […]