PP-PS1完整詳解版-V2[1].0

Whatwasthepercentincreaseinthesharepricefromtheendofth

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Unformatted text preview: ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­ 37. 5000­!­item­!­187;#058&004365 For every integer k from 1 to 10, inclusive, the kth term of a certain sequence is given by T is the sum of the first 10 terms in the sequence, then T is . If (A) greater than 2 (B) between 1 and 2 (C) between 1/2 and 1 (D) between 1/4 and 1/2 (E) between 1/4 38. 5102­!­item­!­187;#058&004451 Three grades of milk are 1 percent, 2 percent, and 3 percent fat by volume. If x gallons of the 1 percent grade, y gallons of the 2 percent grade, and z gallons of the 3 percent grade are mixed to give x + y + z gallons of a 1.5 percent grade, what is x in terms of y and z ? (A) y + 3z (B) (y + z) /4 (C) 2y + 3z (D) 3y + z (E) 3y + 4.5z 39. 5583­!­item­!­187;#058&004668 A certain stock exchange designates each stock with a one­, two­, or three­letter code, where each letter is selected from the 26 letters of the alphabet. If the letters may be repeated and if the same letters used in a different order constitute a different code, how many different stocks is it possible to uniquely designate with these codes? (A) 2,951 (B) 8,125 (C) 15,600 (D) 16,302 (E) 18,278 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­ 作作作作E 作作作作作作作作作If the letters may be repeated and if the same letters used in a different order constitute a different code, 作作one letter­26作 two letters­26x26作 three letters­26x26x26作 total=18,278 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­...
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