SAT Mc Graw Hill 2011

52 McGRAW-HILL’S SAT

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9. The graph above represents the set of all
   possible solutions to which of the following
   statements?
   (A) ⎟x− 1 ⎟> 1
   (B) ⎟x+ 1 ⎟< 1
   (C) ⎟x− 1 ⎟< 1
   (D) ⎟x+ 1 ⎟> 1
   (E) ⎟x+ 1 ⎟> − 1

a>b

b<c

a= 2 c

10. If a, b,and crepresent different integers in
    the statements above, which of the following
    statements must be true?
    I. a>c
    II. 2c> b
    III. ac>b^2
    (A) I only
    (B) II only
    (C) I and II only
    (D) II and III only
    (E) I, II, and III


11. How many different positive three-digit inte-
    gers begin with an odd digit and end with an
    even digit?
    (A) 125
    (B) 180
    (C) 200
    (D) 225
    (E) 250
    12. A machine uses a laser beam to cut circles from
    a sheet of plastic, as shown in the figure above.
    The beam cuts at the rate of 3 cm per second.
    If circle Ahas an area of 64square centime-
    ters and circle Bhas an area of 16square cen-
    timeters, how many more seconds will it take
    the machine to cut circle Athan circle B?
    (A) 2πseconds

(B)

(C)

(D) 8πseconds

(E)

48

3

π

seconds

16

3

π

seconds

8

3

π

seconds

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