Hard GMAT Practice Questions

258 free hard-difficulty GMAT questions, drawn live from KomFi's calibrated bank. These are the items that separate top scorers — every one carries a full explanation and trap analysis once you sign in.

1. What is the units digit of 7^82 + 3^43?
2. What is the smallest possible value of n?
3. In a survey of 200 households, 120 have a TV, 90 have a comp… — How many households have NONE of these devices
4. What is the total time, in hours, required to fill the reservoir from the start?
5. In a town of 100 residents, 45 visit the Park, 35 visit the… — How many residents visit exactly one of these p
6. How many positive factors of 200 are also multiples of 4?
7. If sqrtx + sqrtx + √(x + dots) = 5, what is the value of x?
8. For what range of values of x is the inequality (x+4)/(x-1) ≤ 2 satisfied?
9. For how many integer values of k does kx^2 + 8x + (k+6) = 0 have two distinct real solutions?
10. Approximately what is the probability that the individual actually has the condition?
11. What percentage of the total employees with advanced degrees are male?
12. What is the maximum possible value of the median of set T?
13. What is the value of d?
14. By what percent did the retailer mark up the price it paid the distributor?
15. What is the probability that the sum of the three dice equals 10?
16. What was the test score of the student who moved?
17. What is the sum of all real values of x satisfying the equation?
18. How many liters of the original mixture were drained off?
19. How many days would worker B alone have needed to complete the entire project?
20. On which day will the assembly be completed?
21. What is the total time from the start until the cistern is completely full?
22. A workshop stacks boxes so that the number of boxes in the a… — What is the number of trailing zeros in this v
23. A committee has n members, exactly 3 of whom are statisticians. Two members are selected at random (without re
24. If the third contractor could have completed the entire renovation alone in a whole number of days, how many d
25. What is the sum of all real solutions for x?
26. What is the minimum possible value of the median of the combined list of 15 values?
27. What is the value of a+b?
28. What is the value of n - m?
29. What is the sum of all possible values of s?
30. At what time does Q catch P?

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