在sat数学的备考中，考生们难免会遇到一些比较难的题目，面对这些题目的时候我们要做的就是根据答案的相关解析彻底明白这道题，然后整理总结为自己的方式，这样下次再遇到的时候就不会再犯错误了，一起来看看sat数学难题大全!
x^2 表示 x 的平方，=!表示不等于。pi 表示圆周率
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20. The least integer of a set of consecutive integers is -25. If the sum of these integers is 26, how many integers are in this set?
(A) 25 (B) 26 (C) 50 (D) 51 (E) 52
14. Exactly 4 actors try out for the 4 parts in a play. If each actor can perform any one part and no one will perform more than one part, how many different assignments of actors are possible?
16. Set X has x members and set Y has y members. Set Z consists of all members that are in either set X or set Y with the exception of the k common members (k > 0). Which of the following represents the number of members in set Z ?
(A) x + y + k (B) x + y - k (C) x + y + 2k (D) x + y - 2k
(E) 2x + 2y - 2k
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