By Jeff
- **Jul 4**, 02:00 AM

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By Jeff
- **Jul 3**, 02:00 AM

Math
10 engineers and 3 designers have volunteered to work on a project. If the project team must consist of 3 engineers and 2 designers, in how many different ways can the team be formed?
A. 360
B. 400
C. 420
D. 450
E. 600
Question Discussion & Explanation
Correct Answer - A - (click...

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By Jeff
- **Jun 30**, 02:00 AM

Math
Are all elements of an increasing infinite sequence of positive integers odd?
(1) All elements of the sequence are divisible by the same odd integer larger than 1
(2) The difference between any consecutive elements of the sequence is even
Question Discussion & Explanation
Correct Answer - E - (click and...

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By Jeff
- **Jun 29**, 02:00 AM

Math
If a 30%-solution of alcohol was mixed with a 50%-solution of alcohol to obtain 10 liters of a 45%-solution of alcohol, how much of the 30%-solution was used?
A. 2.0 liters
B. 2.5 liters
C. 2.7 liters
D. 3.0 liters
E. 3.2 liters
Question Discussion & Explanation
Correct Answer - B - (click and...

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By Jeff
- **Jun 28**, 02:00 AM

Math
If John is 3 years older than Jennifer, how many years ago was John twice as old as Jennifer?
(1) The aggregate age of John and Jennifer is 59 years
(2) 11 years ago, John was 20 years old
Question Discussion & Explanation
Correct Answer - D - (click and drag...

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By Jeff
- **Jun 27**, 02:00 AM

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By Jeff
- **Jun 26**, 02:00 AM

Math
If 25% of the company's employees contribute at least 4% of their salary to the Charity Fund, what percent of the company's employees contribute at least 5% of their salary to the Charity Fund?
(1) 20% of the company's employees contribute at least 4% but less...

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By Jeff
- **Jun 23**, 02:00 AM

Math
A basket contains red, blue, and green marbles in a 2:3:5 ratio. If there are 9 more green than red marbles, how many more green marbles than blue marbles does the basket contain?
A. 3
B. 5
C. 6
D. 8
E. 9
Question Discussion & Explanation
Correct Answer - C - (click and...

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By Jeff
- **Jun 22**, 02:00 AM

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By Jeff
- **Jun 21**, 02:00 AM

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