17. If the estimated sales is 250 cartons but actual sales is 225 cartons, the percent of error in this estimate is
    (A)     1 %
    (B)     6 2/5 %
    (C)     10%
    (D)     15 %
    (E)     9 %

18. If the radius of a circle is diminished by 25% the area is diminished by

    (A)     12½ %
    (B)     43 ¼ %
    (C)     56 ¾ %
    (D)     25 %
    (E)     50%

19. Given the system of equations 3x + 2y = 8 and 2x - 3y = 12, what does 5x - y equal ?

    (A)     -20
    (B)     4
    (C)     10
    (D)     20
    (E)     1

20. Which of the following sets of fractions is arranged in decreasing order?

    (A)     3/5 , 5/8, 6/11, 7/12
    (B)     5/8, 3/5, 7/12, 6/11
    (C)     7/12, 6/11, 5/8, 3/5
    (D)     3/5, 5/8, 6/11, 7/12
    (E)     5/8, 3/5, 6/11, 7/11

21. If a semi-circle surrounds an equilateral triangle whose side is 2a as shown in the diagram then what is the area of the semi-circle ?
    
22. Equilateral triangle PQR has a perpendicular line drawn from P to QR. If the triangle is "folded over" on the perpendicular line so that the points Q and R meet, the perimeter of the new triangle is approximately what percent of the perimeter of the triangle before the fold?
    (A)     78 %
    (B)     100 %
    (C)     50 %
    (D)     32 %
    (E)     It cannot be determined from the information given.

23. The points (2, -3) and (-1, y) are 5 units apart. What does ’y’ equal ?

    (A)     1
    (B)     1, -7
    (C)     -7
    (D)     5
    (E)     - 6

24. Corner ADF is cut from rhombus as shown in the figure below. Find the area of the remaining portion polygon ABCF in square inches.

    

    (A)     25
    (B)     40
    (C)     12.5
    (D)     30
    (E)     It cannot be determined from the given information.

25. (x - 9) ( x - 3) = ?

    (A)     x² + 27
    (B)     x² - 12x + 27
    (C)     x² - 6x + 27
    (D)     x² - 6x - 27
    (E)     x² + 12x - 27

Index