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

Math (DS)
Is the range of a non-empty set S bigger than its mean?
1. All members of S are negative
2. The median of set S is negative
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By dzyubam
- **Jan 23**, 02:00 AM

Math (PS)
A contractor estimated that his 10-men crew could complete the construction in 110 days if there was no rain. (Assume the crew does not work on any rainy day and rain is the only factor that can deter the crew from working). However, after...

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

Math (PS)
If , what is the value of ?
(A)
(B)
(C)
(D)
(E)
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By dzyubam
- **Jan 16**, 02:00 AM

Math (PS)
There are four distinct pairs of brothers and sisters. In how many ways can a committee of 3 be formed and NOT have siblings in it?
(A) 8
(B) 24
(C) 32
(D) 56
(E) 80
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By dzyubam
- **Jan 11**, 02:00 AM

Math (DS)
How many different numbers are there such that ( , , and are known) ?
1.
2.
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By dzyubam
- **Jan 6**, 02:00 AM

Math (PS)
Set consists of all points such that . If point is selected from set at random, what is the probability that ?
(A)
(B)
(C)
(D)
(E)
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- **Jan 3**, 22:16 PM

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By dzyubam
- **Jan 3**, 02:00 AM

Math (PS)
What is between?
(A) and
(B) and
(C) and
(D) and
(E) and
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By dzyubam
- **Dec 29**, 02:00 AM

Math (DS)
If vertices of a triangle have coordinates , what is the area of the triangle?
1.
2. angle at the vertex equals 90 degrees
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By dzyubam
- **Dec 26**, 02:00 AM

Math (PS)
Which of the following sets has the same standard deviation as set ?
(A)
(B)
(C)
(D)
(E)
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