By Miranda Menestrina
- Dec 29, 21:41 PM
Math
Three workers, A, B, and C, can complete a certain task in 10, 5 and x hours respectively. A starts working alone and 2 hours later B joins. After another 2 hours joins C. After that A, B, and C together complete the task in...
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By Miranda Menestrina
- Dec 26, 02:00 AM
Math
It takes computer A 6 hours and 40 minutes to finish a job. If computer B can process the same job in 10 hours, how long will it take, for both computers working together, to finish the job?
A. 6 hours and 20 minutes
B. 5 hours...
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By Miranda Menestrina
- Dec 25, 02:00 AM
Math
A cook went to a market to buy some eggs and paid $12. But since the eggs were quite small, he talked the seller into adding two more eggs, free of charge. As the two eggs were added, the price per dozen went down by...
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By Miranda Menestrina
- Dec 24, 02:00 AM
Math
A train is traveling at a constant speed from city A to city B. Along this trip the train makes three one-hour stops and reaches city B. At city B the train is stopped again for 1 hour. After that the train makes the return...
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By Miranda Menestrina
- Dec 22, 02:00 AM
Math
Set A consist of 10 terms, each of which is a reciprocal of a prime number, is the median of the set less than 1/5?
(1) Reciprocal of the median is a prime number.
(2) The product of any two terms of the set is a terminating...
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By Miranda Menestrina
- Dec 19, 02:00 AM
Math
Out of 100 people surveyed, 60 were women. If 10 were smoking women and 20 were smoking men, what percentage of men surveyed were non-smokers?
A. 10
B. 20
C. 30
D. 40
E. 50
Question Discussion & Explanation
Correct Answer - E - (click and drag your mouse to see the...
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By Miranda Menestrina
- Dec 18, 02:00 AM
Math
A set of 11 different integers has a median of 25 and a range of 50. What is the greatest possible integer that could be in this set?
A. 65
B. 70
C. 75
D. 80
E. 85
Question Discussion & Explanation
Correct Answer - B - (click and drag your mouse...
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By Miranda Menestrina
- Dec 17, 02:00 AM
Math
If a, b, and c are integers and , are a, b, and c consecutive integers?
(1) The median of {a!, b!, c!} is an odd number.
(2) c! is a prime number.
Question Discussion & Explanation
Correct Answer - C - (click and drag your mouse...
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