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If n is a positive integer and r is the remainder when (n-1)(n+1) is divided by 24, what is the value of r? (1) 2 is not a factor of n. (2) 3 is not a factor of n.
Last year the price per share of Stock X increased by k percent and the earnings per share of Stock X increased by m percent, where k is greater than m. By what percent did the ratio of price per share to earnings per share increase, in terms of k and m?
我怎么觉得就是k/m%呢？？
还有一题，刚看到的，但是我算出的答案（应该不会有错的），在选项中没有....这个太恐怖了～ 希望大家能给个建议：（换算的公式是原题给出的） How many seconds will it take for a car that is traveling at a constant rate of 45 miles per hour to travel a distance of 22 yards? (1 mile = 1,160 yards)
A. 8 B. 9 C. 10 D. 11 E. 12 | 
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发表于 2008-5-7 12:51:00
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