SAT Mc Graw Hill 2011

584 MCGRAW-HILL’S SAT

2 2 222 2

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13. If a, b,and care positive even integers such
    that a< b< cand a+b+c=60, then the greatest
    possible value of cis
    (A) 36
    (B) 40
    (C) 42
    (D) 54
    (E) 57


14. The population of Bumpton increased by 10%
    from 1980 to 1990 and decreased by 10% from
    1990 to 2000. What is the net percent change
    in the population of Bumpton from 1980 to
    2000?
    (A) −9%
    (B) −1%
    (C) +0%
    (D) +1%
    (E) +9%


15. If a+b=9, a−c=14, and a=10, then c−b=

(A) − 5

(B) − 3

(C) 3

(D) 5

(E) 23

11. If the average (arithmetic mean) of a, b, 4, and
    10 is 8, what is the value of a+b?
    (A) 4
    (B) 6
    (C) 9
    (D) 15
    (E) 18


12. With the exception of the shaded squares, every
    square in the figure above contains the sum of
    the number in the square directly above it and
    the number in the square directly to its left. For
    example, the number 4 in the unshaded square
    above is the sum of the 2 in the square above it
    and the 2 in the square directly to its left. What
    is the value of x?
    (A) 6
    (B) 7
    (C) 8
    (D) 15
    (E) 30

(^012345)
1
2
3
4
5

2 4

x

15. Several values of the function fare shown above.
    The function gis defined by g(x) = 2 f(x) −1. What
    is the value of g(3)?
    (A) − 21
    (B) − 13
    (C) 3
    (D) 11
    (E) 21

x

–2

–1

0

1

2

3

4

–29

–21

–13

–5

3

11

19

f(x)