PP-PS1完整詳解版-V2[1].0

Iftheconstantrateofonepumpwas15timestheconstantrateoft

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Unformatted text preview: ­­­­­­­­ 42. 5722­!­item­!­187;#058&004704 Mark bought a set of 6 flower pots of different sizes at a total cost of $8.25. Each pot cost $0.25 more than the next one below it in size. What was the cost, in dollars, of the largest pot? (A) $1.75 (B) $1.85 (C) $2.00 (D) $2.15 (E) $2.30 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­ 作作作作C 作作作作作作作作size cost X 作X作作作size=X+0.25,作作作size=x+0.5….作作 8.25作X+(X+0.25)+(X+0.5)+(X+0.75)+(X+1)+(X+1.25),X=0.75 so, the largest pot costs 0.75+1.25=$2.00 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­ 43. 5768­!­item­!­187;#058&004705 A committee of three people is to be chosen from four married couples. What is the number of different committees that can be chosen if two people who are married to each other cannot both serve on the committee? (A) 16 (B) 24 (C) 26 (D) 30 (E) 32 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­ 作作作作E 作作作作<作作1>committe作作作作couple作作作作 "作作作作作­committe作作couple作作作" C(8,3)­4*6 =56­24 =32 (4*6作作作couple作作作作作作作4作coule作作作作作committe作作作作作作作作作作) <作作2> 8× 6× 4 = 32 OOO → 作作作作作作作作作作作!!作3!作作作 abc acb bac bca cba cab 作作作作作作作 3! ­­­­...
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