Examples of difficult GMAT questions
Generally GMAT quantitative questions are not hard. What makes some of the problems difficult is the way they are asked. The data sufficiency format is not typical for problems of any other standardized test and it requires practice. Most of the problem solving questions are word problems and they could trip some good math students.
Question: A coin is tossed six times. What is the probability that exactly three heads will show?
Question: 4 students go to the movies and seat on a row of 4 seats. How many different ways can the 4 students sit?
Question: Is x > 5?
(1) x2 < 4
(2) |x – 5| > 0
(a) Statement (1) ALONE is sufficient, but statement (2) is not sufficient.
(b) Statement (2) ALONE is sufficient, but statement (1) is not sufficient.
(c) BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
(d) EACH statement ALONE is sufficient.
(e) Statements (1) and (2) TOGETHER are NOT sufficient.