Preparing for the GMAT isn’t just about knowing math or grammar—it’s about recognizing patterns in the questions themselves.
Certain question formats appear again and again, and mastering them can significantly boost your score.
Below are 10 of the most common GMAT questions you’re likely to encounter, along with insights into how to solve them.
1. What is the value of x in a linear equation?
Example:
If 3x + 5 = 20, what is x?
Why it’s common:
This is a foundational algebra question that tests your ability to isolate variables.
How to solve:
Subtract 5 from both sides, then divide by 3. The GMAT often hides simple algebra in more complex wording, so stay focused on the basics.
2. Is a number divisible by another number?
Example:
Is n divisible by 6?
(1) n is divisible by 2
(2) n is divisible by 3
Why it’s common:
This is a classic Data Sufficiency question.
How to think about it:
A number is divisible by 6 only if it’s divisible by both 2 and 3. The trick is evaluating whether each statement alone—or together—is sufficient.
3. What is the probability of a specific event?
Example:
A bag contains 3 red and 2 blue balls. What is the probability of drawing a red ball?
Why it’s common:
Probability questions test logical reasoning and basic counting.
Approach:
Probability = favorable outcomes ÷ total outcomes.
Here, it’s 3/5.
4. What is the average (mean) of a set?
Example:
What is the average of 5, 7, and 9?
Why it’s common:
Statistics questions frequently appear in simple or disguised forms.
Tip:
Average = sum ÷ number of values.
Be careful—GMAT may hide missing values or require weighted averages.
5. What is the value of an expression?
Example:
If x = 2, what is x^2 + 3x?
Why it’s common:
Tests substitution and order of operations.
Strategy:
Plug in carefully and avoid arithmetic mistakes. Many wrong answers come from simple miscalculations.
6. Which statement is logically correct?
Example (Critical Reasoning):
If all A are B, and all B are C, which must be true?
Why it’s common:
Tests logical structure and deduction.
Key insight:
All A are C.
These questions often appear simple but can become tricky with added conditions.
7. Which sentence is grammatically correct?
Example (Sentence Correction):
Choose the best version of a sentence involving subject-verb agreement.
Why it’s common:
Sentence Correction is a major part of the GMAT verbal section.
What to watch for:
- Subject-verb agreement
- Modifier placement
- Parallelism
- Conciseness
8. What is the ratio between two quantities?
Example:
The ratio of boys to girls is 3:2. If there are 15 boys, how many girls are there?
Why it’s common:
Ratio problems are frequent and often embedded in word problems.
Approach:
Set up proportions.
If 3 parts = 15, then 1 part = 5 → girls = 2 × 5 = 10.
9. What is the distance, rate, or time?
Example:
A car travels at 60 mph for 2 hours. How far does it go?
Why it’s common:
Classic word problem using a core formula.
Core formula:
Distance = Rate × Time
These problems often combine multiple speeds or time intervals.
10. Is a statement sufficient to answer the question?
Example (Data Sufficiency):
What is the value of y?
(1) y + x = 10
(2) x = 4
Why it’s common:
Data Sufficiency is unique to the GMAT and heavily tested.
Strategy:
- Evaluate each statement alone
- Then together
- Don’t actually solve unless necessary
Final Thoughts
The GMAT isn’t about memorizing formulas—it’s about recognizing patterns in how questions are asked. These 10 examples represent the building blocks of hundreds of variations you’ll see on the test.
If you get comfortable with these, you’ll start to notice something powerful:
most GMAT questions aren’t new—they’re just familiar ideas in disguise.