By Jeff
- **Mar 31**, 02:00 AM

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

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

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

Math
A chess player won 25 percent of the first 20 games he played and all of his remaining games. What is the ratio of the number of games he won to the number of the games he lost? (Assume there cannot be a draw in...

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By Jeff
- **Mar 25**, 02:00 AM

Math
How much water (in grams) should be added to a 35%-solution of acid to obtain a 10%-solution of acid?
(1) There are 50 grams of the 35%-solution.
(2) In the 35%-solution of acid the ratio of acid to water is 7:13.
Question Discussion & Explanation
Correct Answer - A - (click...

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By Jeff
- **Mar 24**, 02:00 AM

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

Math
There are 3 red chips and 2 blue chips. If they form a certain color pattern when arranged in a row, 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 your mouse...

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

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

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By Jeff
- **Mar 18**, 02:00 AM

Math
Each shelf of a bookcase contained 12 books. If the librarian took out 21 books and rearranged the remaining books so that all shelves but the last one contained 8 books and that last shelf contained 11 books, how many shelves does the bookcase have?
A....

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