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,...

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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...

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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...

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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...

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By dzyubam
- **Mar 15**, 04:57 AM

Math (DS)
A rectangle is inscribed in a circle of radius 5. Is the area of the rectangle bigger than 48 ?
1. The ratio of the lengths of sides of the rectangle is 3:4
2. The difference between the lengths of sides of the rectangle is smaller...

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By dzyubam
- **Mar 14**, 02:00 AM

Math (DS)
Is the perimeter of a rectangle greater than 8 inches?
1. The diagonal of the rectangle is twice as long as its shorter side
2. The diagonal of the rectangle is 4 inches longer than its shorter side
Question Discussion & Explanation
Correct Answer - B - (click...

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By dzyubam
- **Mar 13**, 02:00 AM

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By dzyubam
- **Mar 12**, 02:00 AM

Math (DS)
What is the mean of four consecutive even integers , , , ? is the smallest of the four integers.
1.
2.
Question Discussion & Explanation
Correct Answer - B - (click and drag your mouse to see the answer)
GMAT Daily...

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By dzyubam
- **Mar 9**, 02:00 AM

Math (DS)
Vertices of a triangle have coordinates , and . Is the area of the triangle bigger than 15?
1. A

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By dzyubam
- **Mar 7**, 05:35 AM

Math (DS)
Set consists of distinct numbers such that the difference between any two different elements of set is an integer. How many elements does set contain?
1. The difference between any two different elements of set is 2
...

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