4.3 Sample QuestionsAB
+ BA
AAC
PS09820- In the correctly worked addition problem shown, where
the sum of the two-digit positive integers AB and BA is
the three-dig仆integer AAC, and A, B, and C are
different digits, what is the units digit of the integer
AAC?
(A) 9
(B) 6
(Cl^3
(D) 2
(E) 0700
600
芯芯Elkeo^500400300200( 10 ,340)I f (160,34 0 )
(20,2 (^00) )
(8^0 ,20^0 )
100 + (^40 ,^160 )
0 1 00 200 300 400 500
length
PSM060
- Planning is in progress for a fenced, rectangular
playground with an area of 1,600 square meters. The
graph above shows the perimeter, in meters, as a
function of the length of the playground. The length
of the playground should be how many meters to
而nimizethe perimeter and, therefore, the amount of
fencing needed to enclose the playground?
(A) 10
(B) 40
(C) 60
(D)^160
(E)^3403r:,; 4s+5
PS06913 lsl:,;^5- Given the inequalities above, which of the following
CANNOT be the value of r?
如fo
520因佃©回们PSl 1647
I 09. If m is an even integer, vis an odd integer, and
m > v > 0, which of the following represents the number
of even integers less than m and greater than v?(A) m-v - 1
2(B)m-v-l
2(Cl m-v
2
(D) m-v-^1
(E) m-v
PS02378- A positive integer is divisible by 9 if and only if the
sum of its digits is divisible by 9. If n is a positive
integer, for which of the following values of k is 25
x 10n + k x 102n divisible by 9?
(A) 9
(B) 16
(C) 23
(D) 35
(E) 47
PSl 7806- The perimeter of rectangle A is 200 meters. The length
of rectangle Bis 10 meters less than the length of
rectangle A and the width of rectangle B is 10 meters
more than the width of rectangle A. If rectangle B is a
square, what is the width, in meters, of rectangle A?
(A) 10
(B) 20
(C) 40
(D) 50
(E) 60