When discussing fractions, I often find a very interesting area of confusion among students. I’ll ask them to compare, for example, 1/3 and 1/4. Almost everyone correctly answers that 1/4 is smaller. “How do you know?” I’ll ask. And this is where...

Math (PS) What is the last digit of the following number ? (A) 6 (B) 5 (C) 2 (D) 1 (E) 0 GMAT Daily Deals Get $100 off a Manhattan GMAT course with the code GCLUB100! Sign up now! Incredible savings from Veritas Prep – save 10% on any course and receive a...

Math (PS) 6 students in a group study different languages as specified: * Russian: 4 * Ukrainian: 3 * Hebrew: 2 Each student studies at least 1 language. If it is also known that exactly 3 students study exactly 2 languages, how many students are studying all three languages? (A) 0 (B)...

Math (PS) How many five-digit numbers can be formed using the digits 0, 1, 2, 3, 4 and 5 which are divisible by 3, without repeating the digits? (A) 15 (B) 96 (C) 120 (D) 181 (E) 216 GMAT Daily Deals Revolution Prep offers a full GMAT online course for only $200 when...

Math (PS) One fisherman was telling his friends that he caught a fish that had a 60 foot long head. It also had a tail that was as long as the fish’s head and a half of its body. Finally, the body was half the size...

Math (PS) Which set(s) has the greatest standard deviation? 1. Set 1 consisting of 10 digits 2. Set 2 consisting of 10 first positive consecutive even numbers 3. Set 3 consisting of 10 first primes (A) set 1 (B) set 2 (C) set 3 (D) set 1 and 2 (E) set 1, 2, and...

Math (PS) A car dealership sold two cars: the first car at a 10% profit and the second car at a 10% loss, which gave them an overall profit margin of 5% from these two sales. If the dealership’s total profit was $1000, what was the...

Math (PS) A computer generated a sequence of numbers using the following formula: is the common difference between any two consecutive terms of the sequence If the sum of the second and the fifth terms of the sequence is 8 and the sum of the...

Math (PS) Lionel left his house and walked towards Walt’s house, 48 miles away. Two hours later, Walt left his house and ran towards Lionel’s house. If Lionel’s speed was 4 miles per hour and Walt’s 6 miles per hour, how many miles had Lionel walked...

Math (PS) The following table shows results of a quality inspection of a lot of 15 mirrors. Defects    Frequency 0 6 1 1 2 4 3 3 4 1 The difference between the median number of defects and the average number of defects in the sample checked is between: (A) -1 and 0 (B) 0 and 0.5 (C) 0.5 and 1 (D)...