自測試題一(3)

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Questions 23-25 refer to the following graphs.
    23. The funds distributed in 1992 for youth
    development were approximately
    (A) $38,000
    (B) $170,000
    (C) $380,000
    (D) $450,000
    (E) $1,700,000
    24. The increase in the amount of money distributed
    for family support from 1992 to 1993 was closest to
    which of the following?
    (A) $0
    (B) $24,000
    (C) $40,000
    (D) $60,000
    (E) $94,000
    25. If all of the emergency assistance funds in 1993
    were distributed among 40 groups, which of the
    following is closest to the average (arithmetic mean)
    amount distributed per group?
    (A) $10,000
    (B) $11,000
    (C) $12,000
    (D) $13,000
    (E) $14,000
    26. The curve above consists of three semicircles: AB,
    BC, and CD. The diameter of AB is 2, the diameter of
    BC is twice the diameter of AB, and the diameter of
    CD is twice the diameter of BC. What is the total
    length of the curve?
    (A) 2
    (B) 4
    (C) 6
    (D) 7
    (E) 8
    27. What is the cost, in cents, of using a certain fax
    machine to send n pages of a report if the total cost
    for sending the first k pagers is r cents and the cost
    for sending each additional page is s cents?
    (Assume that n > k.)
    (A) r s (n - k)
    (B) r s (n k)
    (C) rs(n k)
    (D) kr s(n - k)
    (E) kr ns
    28. A rectangular solid has a square base and altitude
    of 7. If the volume of the solid is 252, then the
    perimeter of the square base is
    (A) 9
    (B) 24
    (C) 28
    (D) 36
    (E) 49
    29. In a series of races, 10 toy cars are raced, 2 cars at
    a time. If each car must race each of the other cars
    exactly twice, how many races must be held?
    (A) 40
    (B) 90
    (C) 100
    (D) 180
    (E) 200
    30. (2 - 2 )(2 - 2 ) =
    (A) 2
    (B) 2
    (C) 2
    (D) 2
    (E) 2