自測(cè)試題一(2)

字號(hào):

17. 3 - 2 =
    (A) -30
    (B) -10
    (C) 23
    (D) 63
    (E) 77
    18. For every positive integer n greater than 1, n! Is
    defined as the product of the first n positive integers,
    For example, 4! = (1) (2) (3) (4) = 24. What is the
    value of ?
    (A) 2
    (B) 66
    (C) 121
    (D) 132
    (E) 144
    19. A market survey showed that 76 percent of the
    visitors at a certain resort came from Pacific or
    southwestern states. Of these, were from
    California, and 87 percent of the Californians were
    from southern California. Approximately what percent
    of the visitors at the resort were from southern
    California?
    (A) 40%
    (B) 45%
    (C) 50%
    (D) 55%
    (E) 65%
    20 If is an integer an n is an integer, then n
    could be each of the following EXCEPT
    (A) 4
    (B) 6
    (C) 13
    (D) 25
    (E) 26
    Questions 21-22 refer to the following table.
    21. What is the ration of the amount budgeted
    annually for food to the amount budgeted annually
    for savings?
    (A) 4 to 3
    (B) 4 to 7
    (C) 5 to 3
    (D) 7 to 3
    (E) 7 to 4
    22. If a pie graph (such as the one above) were drawn
    to scale to represent the budges distribution into the
    five categories, what would be the measure of the
    central angle of the sector representing savings?
    (A) 15?
    (B) 30?
    (C) 36?
    (D) 42?
    (E) 54?