By dzyubam
- **Mar 28**, 02:00 AM

Math (PS)
Two trains continuously travel between Washington DC and Baltimore, which is 120 miles away. They start simultaneously, train A at Washington and train B at Baltimore, and run at 30 and 90 mph respectively. The station turnaround times are negligible. What is the distance...

Read More

By dzyubam
- **Mar 27**, 02:00 AM

Math (PS)
Foodmart customers regularly buy at least one of the following products: milk, chicken, or apples. 60% of shoppers buy milk, 50% buy chicken, and 35% buy apples. If 10% of the customers buy all 3 products, what percentage of Foodmart customers purchase exactly 2...

Read More

By dzyubam
- **Mar 26**, 02:00 AM

Math (DS)
and are positive integers and . What is the value of ?
1.
2. is a prime number
Question Discussion & Explanation
Correct Answer - C - (click and drag your mouse to see the answer)
GMAT Daily Deals
Knewton GMAT: Highly qualified instructors....

Read More

By dzyubam
- **Mar 23**, 02:00 AM

Math (DS)
When is divided by 5, the remainder is 2. Is divisible by 7?
1. is a prime number
2. is a multiple of 10
Question Discussion & Explanation
Correct Answer - E - (click and drag your mouse...

Read More

By dzyubam
- **Mar 22**, 02:00 AM

Math (PS)
A 4 cm cube is cut into 1 cm cubes. What is the percentage increase in the surface area after such cutting?
(A) 4%
(B) 166%
(C) 266%
(D) 300%
(E) 400%
OA and Explanation
Question Discussion & Explanation
Correct Answer - D - (click and drag your mouse to see the...

Read More

By Knewton
- **Mar 21**, 14:35 PM

By Jen Rugani
In the Nintendo game Super Mario Bros., Mario uses green warp pipes to travel around the world. Even though some of these pipes don’t lead anywhere, savvy players know that it’s wise to try to enter every single one, because every so often,...

Read More

By dzyubam
- **Mar 21**, 02:00 AM

Math (PS)
Which expression has the greatest value?
(A)
(B)
(C)
(D)
(E)
Question Discussion & Explanation
Correct Answer - C - (click and drag your mouse to see the answer)
GMAT Daily Deals
Free GMAT Club tests (over 1,100 questions & $250 value) + $200 promo code when you...

Read More

By Magoosh
- **Mar 20**, 09:00 AM

Many of our students requested that we record video explanations for the math questions ("Sample Questions") from the GMAT Official Guide, both Data Sufficiency and Problem Solving, and we were happy to help!
Here's the link to the videos, be sure to bookmark it and refer...

Read More

By dzyubam
- **Mar 20**, 02:00 AM

Math (DS)
Set consists of a certain number of even integers divisible by 3. Is standard deviation of positive?
1. All elements of set are positive
2. The range of set is 0
Question Discussion & Explanation
Correct Answer - B - (click and drag your...

Read More

By dzyubam
- **Mar 19**, 02:00 AM

Math (DS)
If sets and are united into a single set, will the mean of this set be smaller than the sum of means of sets and ?
1. and are one-element sets
2. Neither set nor set contains negative...

Read More