2011年MBA联考数学真题及解答.pdf

MBA201110 1. 10% ( ) ● (A) 21% ● (B) 110% ● (C) 120% ● (D) 121% ● (E) 133.1% :D [] a a(1+10%)a(1+10%)2 [] (1) (2) 2. 12.5%4020%( ) ● (A) 19 ● (B) 18 ● (C) 17 ● (D) 16 ● (E) 15 :E [] x40×12.5%=(40-x)×20% ∴x=15 :=1:7:=1:43 () [] (1) (2) 3. 2000/ 3500/ q() (%) 1 0q≤500 5 file:///C|/Documents and Settings/Administ...ocuments/My Snippets/MBA201110.htm 19 [2012-12-7 12:12:27] 2 500q≤2000 10 3 2000q≤5000 15 4 5000q≤20000 20 3500/ q() (%) 1 0q≤1500 3 2 1500q≤4500 10 3 4500q≤9000 20 345 ( ) ● (A) 825 ● (B) 480 ● (C) 345 ● (D) 280 ● (E) 135 :B [] 1500×3%=453000×10%=300345 8000=3500()+1500(10%)+3000(10%)345=45+300 8000=2000()+500(5%)+1500(10%)+3000(15%)+1000(20%) 500×5%+1500×10%+3000×15%+1000×20%=825825-345=480 [] (1) (2) 4. 151050( ) ● (A) 22 ● (B) 25 ● (C) 28 ● (D) 30 ● (E) 35 :D [] 150∴ / t [] (1) (2) 5. 30 40% ( ) file:///C|/Documents and Settings/Administ...ocuments/My Snippets/MBA201110.htm 29 [2012-12-7 12:12:27] ● (A) 4650 ● (B) 4800 ● (C) 4950 ● (D) 5100 ● (E) 5250 :E [] x 30 [] (1) (2) 6. {a }a a +2a a +a a =25a 0 a +a =( ) n 2 4 3 5 2 8 1 3 5 ● (A) 8 ● (B) 5 ● (C) 2 ● (D) -2 ● (E) -5 :B [] 2 (a +a ) =25a 0∴a +a =5