12.Practice.Tests.for.the.SAT_2015-2016_1128p

Section 31
Practice Test Seven 605
10. If r is a multiple of both 12 and 18, which of the
following must be a factor of r?
(A) 8
(B) 24
(C) 27
(D) 30
(E) 36
11. If x > 0, then ( 4x)(8x) =
(A) 29x
(B) 2s x
(C) 26x
(D) 2sx
(E) 24x
12. The average (arithmetic mean) of six numbers is 6.
If 3 is subtracted from each of four of the numbers,
what is the new average?
(A) 11--
(B) 2
2
(C) 3
(D) 4
(E) 4+
13. What is the perimeter of a triangle with vertices
(-1, 1), (5, 1), and (2, 5)?
(A) 16
(B) 13
(C) 6 + 2v7
(D) 11
(E) 6 + 2Vs
14. How many different positive two-digit integers are
there such that the tens digit is greater than 5 and
the units digit is odd?
(A) 10
(B) 12
(C) 15
(D) 20
(E) 25
15. If a and b are positive integers, what is a percent of
b percent of 200?
(A) _.E!!._
100
(B) ab
50
(C) ab
(D) 50ab
(E) lOOab
16. Let the "tricate" of a number x be defined as onethird
of the smallest multiple of 3 greater than x. If
the tricate of z is 3, which of the following could be
the value of z?
(A) 2
(B) 5
(C) 7
(D) 9
(E) 11
bo
c o
Note: Figure not drawn to scale.
17. In the triangle above, a + b = 80, and b + c =140.
What is the value of b ?
(A) 40
(B) 50
(C) 80
(D) 100
(E) It cannot be determined from
the information given.
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