PS07426
171.If n is a positive integer and n^2 is divisible by 72 , then
the largest positive integer that must divide n is
(A) 6
(B) 12
(C) 24
(D) 36
(El 48
PS16977
172.A certain grocery purchased x pounds of produce for
p dollars per pound. If y pounds of the produce had to
be discarded due to spoilage and the grocery sold the
rest for s dollars per pound, which of the following
represents the gross pro什ton the sale of the produce?
(A) (x - y)s - xp
(B) (x - y)p - ys
(C) (s - p)y- xp
{D) xp - ys
(E) (x - y)(s - p)
PS16990
17 3. If x, y, and z are positive integers such that x 1s a
factor of y, and x is a multiple of z, which of the
following is NOT necessarily an integer?
(A) x+z
z(B) y+z
X(C) x+y
z(D) xy
z(E) yz
X
PS08416
17 4. Running at their respective constant rates, Machine X
takes 2 days longer to produce w widgets than
Machine Y. At these rates, if the two machines together
produce -w^5 widgets in 3 days, how many days would
1t take Machine X alone to produce 2w widgets?
(A) 4
(B) 6
(C)^8
(D) 10
(E) 124.3 Sample QuestionsPS07117176.- A square wooden plaque has a square brass inlay in
the center, leaving a wooden strip of uniform width
around the brass square. If the ratio of the brass area
to the wooden area is 25 to 39, which of the following
could be the width, in inches, of the wooden strip?
I. 1
II. 3
Ill. 4(A) I only
(B) II only
(C) I and II only
(D) I and Ill only
(E) I, II, and Ill
PS169632 --3 2 1-
5 3
2 3
3 5(A) 16
(B) 14
(C) 3
(D) 1
(E) -1＝