By akkane
- **Sep 28**, 02:00 AM

Math (PS)
The following table shows results of a quality inspection of a lot of 15 mirrors.
Defects
Frequency
0
6
1
1
2
4
3
3
4
1
The difference between the median number of defects and the average number of defects in the sample checked is between:
(A) -1 and 0
(B) 0 and 0.5
(C) 0.5 and 1
(D)...

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By akkane
- **Sep 26**, 02:00 AM

Math (PS)
If is the number of distinct positive divisors of , what is the value of ?
(A) 3
(B) 4
(C) 5
(D) 6
(E) 7
Question Discussion & Explanation
Correct Answer - D - (click and drag your mouse to see the answer)
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By akkane
- **Sep 24**, 02:00 AM

Math (PS)
How many of the three-digit numbers are divisible by 7?
(A) 105
(B) 106
(C) 127
(D) 128
(E) 142
Question Discussion & Explanation
Correct Answer - D - (click and drag your mouse to see the answer)
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By akkane
- **Sep 21**, 02:00 AM

Math (PS)
There are two concentric circles with radii 10 and 8. If the radius of the outer circle is increased by 10% and the radius of the inner circle decreased by 50%, by what percent does the area between the circles grow?
(A) 140%
(B) 141%
(C) 190%
(D)...

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By akkane
- **Sep 18**, 02:00 AM

Math (PS)
If the circus were to sell all of its 220 tickets for this month's performance at its usual price, the revenue from sales would be 10% greater than that collected last month. If the circus raised the ticket price by 5% and sold only...

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By akkane
- **Sep 17**, 02:00 AM

Math (PS)
Some part of a 50% solution of acid was replaced with an equal amount of 30% solution of acid. If, as a result, 40% solution of acid was obtained, what part of the original solution was replaced?
(A)
(B)
(C)
(D)
(E)
Question Discussion &...

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By akkane
- **Sep 14**, 02:00 AM

Math (PS)
In a fleet of a certain car-renting agency the ratio of the number of sedans to the number of hatchbacks was 9:8. If after the addition of 3 sedans and 1 hatchback, this ratio rose to 6:5, how many more sedans than hatchbacks does...

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By akkane
- **Sep 13**, 02:00 AM

Math (PS)
The scoring system in a certain football competition goes as follows: 3 points for victory, 1 point for a draw, and 0 points for defeat. Each team plays 20 matches. If the team scored 9 points after 5 games, what is the least number...

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By akkane
- **Sep 10**, 02:00 AM

Math (PS)
What is the least such that is divisible by 1000?
(A) 8
(B) 10
(C) 15
(D) 20
(E) 25
Question Discussion & Explanation
Correct Answer - C - (click and drag your mouse to see the answer)
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By akkane
- **Sep 7**, 02:00 AM

Math (PS)
What is the last digit of ?
(A) 1
(B) 3
(C) 6
(D) 7
(E) 9
Question Discussion & Explanation
Correct Answer - D - (click and drag your mouse to see the answer)
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