SAT Mc Graw Hill 2011

246 MCGRAW-HILL’S SAT

SAT Practice 3: Finding Patterns

1.

(A) 5

(B) 15

(C) 20

(D) 40

(E) 60

2. Every term of a sequence, except the first, is 6 less
   than the square of the previous term. If the first
   term is 3, what is the fifth term of this sequence?
   (A) 3
   (B) 15
   (C) 19
   (D) 30
   (E) 43

−4, 0, 4, −4, 0, 4, −4, 0, 4,...

3. If the sequence above continues according to the
   pattern shown, what is the sum of the first 200
   terms of the sequence?
   (A) − 800
   (B) − 268
   (C) − 4
   (D) 0
   (E) 268

If

3

then

6

y

x

y

+= +=x

2

10,

4. The figure above shows a square with three line
   segments drawn through the center. What is the
   total area of the shaded regions?


5. What is the units digit of 3^40?
   (A) 1
   (B) 3
   (C) 6
   (D) 7
   (E) 9

....

1 2 3 4 5 7 8 9

6

1

0 2 3 4 5 7 8 9

6

1

0 2 3 4 5 7 8 9

6

1

0 2 3 4 5 7 8 9

6

A B

D C

4

6