By Miranda Menestrina
- **Jun 6**, 02:00 AM

Math (PS)
If curves and enclose a sector on the top part of XY-plane, what is the area of this sector?
(A)
(B)
(C)
(D)
(E)
Question Discussion & Explanation
Correct Answer - C - (click and drag your mouse to see the answer)
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By Miranda Menestrina
- **Jun 5**, 02:00 AM

Math (DS)
If , what is ?
1. is an integer
2. is an integer
Question Discussion & Explanation
Correct Answer - E - (click and drag your mouse to see the answer)
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By Miranda Menestrina
- **Jun 4**, 02:00 AM

Math (PS)
The box contains 10 tablets of medicine A and 15 tablets of medicine B. tablets are taken from the box at random. What is the least possible that ensures that at least two tablets of each kind are among the extracted?
(A) 12
(B)...

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By Miranda Menestrina
- **Jun 3**, 02:00 AM

Math (DS)
grams of water were added to 80 grams of a strong solution of acid. If as a result, the concentration of acid in the solution became times of the initial concentration, what was the concentration of acid in the original solution?
1.
2....

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

Math (PS)
If the power of an engine grows by 10% when the number of its cylinders is increased by one, which of the following is closest to the ratio of the power of a 9-cylinder engine to that of a 12-cylinder engine?
(A) 0.69
(B) 0.71
(C) 0.72
(D)...

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By Miranda Menestrina
- **May 30**, 02:00 AM

Math (PS)
There are 3 red chips and 2 blue chips. When arranged in a row, they form a certain color pattern, for example RBRRB. How many color patterns are possible?
(A) 10
(B) 12
(C) 24
(D) 60
(E) 100
Question Discussion & Explanation
Correct Answer - A - (click and drag...

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By Miranda Menestrina
- **May 29**, 02:00 AM

Math (DS)
At what angle do the lines and intersect?
1.
2.
Question Discussion & Explanation
Correct Answer - A - (click and drag your mouse to see the answer)
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By Miranda Menestrina
- **May 28**, 02:00 AM

Math (PS)
If the farmer sells 75 of his chickens, his stock of feed will last for 20 more days than planned, but if he buys 100 more chickens, he will run out of feed 15 days earlier than planned. If no chickens are sold or...

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By Miranda Menestrina
- **May 27**, 02:00 AM

Math (DS)
Is ?
1.
2.
Question Discussion & Explanation
Correct Answer - E - (click and drag your mouse to see the answer)
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By Miranda Menestrina
- **May 26**, 02:00 AM

Math (DS)
Water evaporates at the rate of two liters per hour per one square meter of surface. How long will it take to evaporate 30 liters of water from a swimming pool full of water with vertical walls and a flat bottom that holds 56...

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