By Miranda Menestrina
- **Jul 14**, 02:00 AM

Math (PS)
The choir consists of 5 boys and 6 girls. In how many ways can the singers be arranged in a row, so that all the boys are together? Do not differentiate between arrangements that are obtained by swapping two boys or two girls.
(A) 120
(B)...

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By Miranda Menestrina
- **Jul 9**, 02:00 AM

Math (PS)
There are two bars of gold-silver alloy; one piece has 2 parts of gold to 3 parts of silver, and the other has 3 parts of gold to 7 parts of silver. If both bars are melted into a 8-kg bar with the final...

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By Miranda Menestrina
- **Jul 8**, 02:00 AM

Math (DS)
Is even?
1. is even
2.
Question Discussion & Explanation
Correct Answer - C - (click and drag your mouse to see the answer)
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By Miranda Menestrina
- **Jul 3**, 02:00 AM

Math (PS)
A number of light bulbs were purchased to illuminate a gym. However, only of them were needed. The extra 160 light bulbs were returned. 60% percent of their cost, or $96, was reimbursed. How much money was spent on illuminating the gym?
(A) 360
(B)...

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By Miranda Menestrina
- **Jul 2**, 02:00 AM

Math (PS)
How many distinct integers are factors of 90?
(A) 6
(B) 8
(C) 9
(D) 10
(E) 12
Question Discussion & Explanation
Correct Answer - E - (click and drag your mouse to see the answer)
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By Miranda Menestrina
- **Jun 27**, 02:00 AM

Math (DS)
Is M < 0[/latex]?
1. [latex]-M = |-M|[/latex]
2. [latex]M^2 = 9[/latex]
Question Discussion & Explanation
Correct Answer - C - (click and drag your mouse to see the answer)
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By Miranda Menestrina
- **Jun 26**, 02:00 AM

Math (PS)
At Daifu university, 40% of all students are both members of a student organization and want to reduce their tuition costs. 20% of those students who want to reduce tuition are not members of the student organization. What percentage of all Daifu students want...

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By Miranda Menestrina
- **Jun 23**, 02:00 AM

Math (PS)
If function satisfies for all , which of the following must be true?
(A)
(B)
(C)
(D)
(E)
Question Discussion & Explanation
Correct Answer - B - (click and drag your mouse to see the answer)
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By Miranda Menestrina
- **Jun 18**, 02:00 AM

Math (PS)
How many odd three-digit integers greater than 800 are there such that all their digits are different?
(A) 40
(B) 56
(C) 72
(D) 81
(E) 104
Question Discussion & Explanation
Correct Answer - C - (click and drag your mouse to see the answer)
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By Miranda Menestrina
- **Jun 17**, 02:00 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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