By dzyubam
- **Jan 30**, 02:00 AM

Math (PS)
With both valves open, the pool will be filled with water in 48 minutes. The first valve alone would fill the pool in 2 hours. What is the capacity of the pool if every minute the second valve admits 50 cubic meters of water...

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

Math (PS)
Two sacks together contained 43.25 kg of sugar. If after 4.75 kg of sugar was taken from the first sack and poured into the second, the weight of the sugar in the first sack became 73% the weight of the sugar in the second...

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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 25**, 02:00 AM

Math (PS)
It takes Jack 2 more hours than Tom to type 20 pages. Working together, Jack and Tom can type 25 pages in 3 hours. How long will it take Jack to type 40 pages?
(A) 5 hours
(B) 6 hours
(C) 8 hours
(D) 10 hours
(E) 12 hours
GMAT...

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By dzyubam
- **Jan 24**, 02:00 AM

Math (PS)
Two sets are defined as follows:
If a number is taken from set at random and another number is taken from set at random, what is the probability that the sum of these numbers is a prime integer?
(A)
(B)
(C)
(D)
(E)
GMAT...

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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 20**, 02:00 AM

Math (PS)
If equation encloses a certain region on the graph, what is the area of that region?
(A) 5
(B) 10
(C) 25
(D) 50
(E) 100
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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 18**, 02:00 AM

Math (DS)
Driving 1.5 times slower, Bill was late for school today. What is the usual time it takes Bill to drive to school? (Assume that each day Bill takes the same route).
1. It took Bill 15 more minutes to drive to school today than usually
2....

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By dzyubam
- **Jan 17**, 02:00 AM

Math (DS)
Is ?
1.
2.
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