30215924 upcat reviewer practice test 2
TRANSCRIPT
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PRACTICE
TEST 2With answer key, solution and UPCAT
review tips
MATHEMATICS
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MATHEMATICS (30 ITEMS)
1. When
7521
52
5
1
3
13
vis simplified and written as decimal, what is the 10
thdigit after the
decimal point?
(A) 5 (B) 6 (C) 7 (D) 9
2. For what value of k is the sum of the roots of the equation 064 22 ! k xk x
equal to twice their product?
(A) k = 2 only (B) k= 2, 3 (C) k = 1, 2 (D) k = 3 only
3. Tatlong buklet ang maaaring i-print gamit ang tatlong printer sa loob ng
tatlong minuto. Gaano karaming mga buklet ang maaaring i-print gamit ang anim
na printer sa loob ng anim na minuto?
(A) 10 (B) 12 (C) 14 (D) 16
4. Ang isang basketball team ay may layunin na maipanalo ang 90% ng kanilang
mga laro. Ang kanilang rekord ay 10 panalo at 2 talo. Kung manalo sila sa
natitirang bahagi ng kanilang mga laro, gaano karaming mga laro ang
kinakailangan upang maabot ang kanilang layunin?
(A) 2 laro (B) 8 laro (C) 10 laro (D) 3 laro
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5. The circle defined by the equation 93422
¡
¢ ¢
y x is moved
horizontally until its center is on the line 6! x . How far does the center of the
circle move?
(A) 2 (B) 9 (C) 10 (D) 15
6. If 11143
! x , what is the value of x?
(A)7
1(B)
7
12(C)
12
7(D)
7
1
7. The number 23a74b is divisible by 9 and 8, where a and b represent distinctdigits of the number. What is a-b?
(A) 3 (B) 5 (C) 6 (D) 8
8. What is the equation of the line which passes through the point 2,3 and is
parallel to the line whose equation is 523 ! x y .
(A) 032 ! y x (B) 1232 ! y x (C)
1232 ! y x (D) 032 ! y x
9. Ako ay n taong gulang sa taong2
n , " ang sabi ni Mang Berto noong 1971.
Anong taon siya ipinanganak?
(A) 1892 (B) 1812 (c) 1927 (d) 1956
10. What is the simplified improper fraction for 488.4 ?
(A)9
44(B)
33
148(C) 33
160(D)
125
606
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11. A circular table is pushed into a corner of a rectangular room so that it touches
both walls. A point on the edge on the edge of the table between the two points of
contact is 2 inches from one wall and 9 inches from the other wall. What is the
radius of the table?
(A) 20 inches (B) 12 inches (C) 15 inches (D) 17 inches
12. Find the total surface area in square meters of a rectangular solid whose length
is 7 meters, width is 6 meters, and depth is 3 meters.
(A) 32 (B) 162 (C) 81 (D) 126
13. Evaluate the following sum:
1002...181512
(A) 139,659 (B) 156,744 (C) 167,817 (D) 189,463
14. Twelve consecutive integers are added together. What is the remainder when
the sum is divided by 4?
(A) 1 (B) 2 (C) 3 (D) no remainder
15. What is three times the sum of x and y given that°¯®
!
!
1515
230230
y x
y x
(A) 81 (B) 90 (C) 102 (D) 120
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16. What is the slope of the line 123
!y x
?
(A)2
3 (B)
3
2 (C)
3
1(D)
3
2
17. The product of a positive number, its square , and its reciprocal is81
100. What
is the number?
(A)100
81(B)
81
100(C)
10
9(D)
9
10
18. The lines x y ! and 2
9!
x
y form a triangle in the first quadrant with the y-
axis. What is the area of this triangle?
(A) 6.75 (B) 7.75 (C) 8.75 (D) 9.75
19. Simplify the expression x x x x
x
(A)2 x x x (B)
x x
x
x x (C) x x x x 2
(D)5
x
20. If 24441 ! x x , then the value of x x2 is
(A) 24 (B) 212 (C) 510 (D) 525
21. A cube has a volume of 3125 cm . What is the area of one face of a cube?
(A) 220 cm (B) 225 cm (C) 2
3
241 cm (D) 25 cm
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22. The vertex of a parabola hbb x y !2 has coordinates 5,2 . What is the
value of h?
(A) 3 (B) 4 (C) 5 (d) 6
23. The diagonals of a rhombus measure 24 inches and 32 inches. The perimeter
of a rhombus
(A) cannot be determined uniquely from the given information
(B) must be 80 inches
(C) must be 280 inches
(D) must be 160 inches
24.Simplify:q p
pq
q
p
q
q p
x
x
x
x
¹¹ º
¸©©ª
¨
¹¹ º
¸©©ª
¨
(A)
22 p pq
x
(B)
22 q pq
x
(C) pq
x2
(D) pq
x
25. Determine the solution of the following equation.
? A 462143122 ! x x x x
(A) 0 (B) 32 (C) 2
1(D) 2
3
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26. A car traveled 3 miles south, 9 miles east, and then another 9 miles south.
What is the straight-line distance (in miles) between the point where the car started
and where it stopped?
(A) 21 (B) 36 (C) 37 (D)15
27. Find the y-intercept of the perpendicular bisector of AB where A 8,5 and B 2,2 .
(A) 6.75 (B) 7.75 (C) 8.75 (D) 8.75
28. For what value of k will the graph of k x x y ! 23
2
be tangent to the x-axis?
(A)2
1(B)
3
2(C)
3
1(D)
4
3
29. The sum of the first five terms of a geometric sequence is 93. If its common
ratio is 2, what is the first term?
(A) 2 (B) 3 (C) 4 (D) 5
30. A certain number was to be added to2
1 but by mistake
2
1was divided by the
number. However, the correct result was obtained. Find the number.
(A) 1or 2 (B) 1or 2 (C) 1-or 2
1(D) 1or
4
1
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SOLUTION:1. When
75
21
5
25
1
3
13
vis simplified and written as decimal, what is the 10
thdigit after the
decimal point?
(A) 5 (B) 6 (C) 7 (D) 9
Solution:
75
21305
1
3
10
75
21
5
25
1
3
13
v!
v
253
32
!
3
25
3
2v!
decimalrepeating55555.59
55
9
50-!!!
The 10th
digit after the decimal point is 5.
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2. For what value of k is the sum of the roots of the equation 064 22 ! k xk x
equal to twice their product?
(A) k = 2 only (B) k= 2, 3 (C) k = 1, 2 (D) k = 3 only
Solution:
R ecall:
In the quadratic equation 02 ! cb xax , the sum of the roots is equal to
a
b and the
product of the roots isa
c .
Therefore in 064 22 ! k xk x
Sum of roots = 46 k
And Product of roots =2
k .
We now solve for the value of k using the following equation
2246 k k !
0232 ! k k
012 ! k k
2or 1 !! k k
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3. Tatlong buklet ang maaaring i-print gamit ang tatlong printer sa loob ng
tatlong minuto. Gaano karaming mga buklet ang maaaring i-print gamit ang anim
na printer sa loob ng anim na minuto?(A) 10 (B) 12 (C) 14 (D) 16
Solution:
x
66
3
33 y!
y
12! x
4. Ang isang basketball team ay may layunin na maipanalo ang 90% ng kanilang
mga laro. Ang kanilang rekord ay 10 panalo at 2 talo. Kung manalo sila sa
natitirang bahagi ng kanilang mga laro, gaano karaming mga laro ang
kinakailangan upang maabot ang layunin?
(A) 2 laro (B) 8 laro (C) 10 laro (D) 3 laro
Solution:
10
9
12
10!
x
x, Cross-Multiply
x x 910810100 !
8! x
Number of
booklets
Number of
printers
Time in
minutes
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5. The circle defined by the equation 93422 ! y x is moved horizontally until
its center is on the line 6! x . How far does the center of the circle move?
(A) 2 (B) 9 (C) 10 (D) 15
Solution:
The center of the circle 93422! y x is 3,4 .
The distance between the point 3,4 and the line 6! x is
.1046 !
6. If 11143
! x , what is the value of x?
(A)7
1(B)
7
12(C)
12
7(D)
7
1
Solution:
11143
! x
4
1
3
11!
x, Multiply both sides by x12 , we have
x x 3412 ! 127 ! x
7
12
! x
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7. The number 23a74b is divisible by 9 and 8, where a and b represent distinct
digits of the number. What is a-b?
(A) 3 (B) 5 (C) 6 (D) 8
Solution:
If the last 3 digits are divisible by 8, so is the entire
number.
The last 3 digits of 23a74b are 74b, 74b is divisible by 8 when b=4.
23a744 is divisible by 9 if 2+3+a+7+4+4 is divisible by 9. Simplifying2+3+a+7+4+4 the result is
a+20, therefore a=7.
The value of a-b is 3.
A number is divisible by 9 if the sum of the digits is
divisible by 9
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9. Ako ay n taong gulang sa taong2
n , " ang sabi ni Mang Berto noong 1971.
Anong taon siya ipinanganak?
(A) 1892 (B) 1812 (c) 1927 (d) 1956
Solution:
n square of n
difference between
the square of n and
n(this is the year of
birth).
39 1521 1482
40 1600 1560
41 1681 1640
42 1764 1722
43 1849 1806
44 1936 1892
45 2025 1980
The most realistic answer
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10. What is the simplified improper fraction for 488.4 ?
(A)9
44(B)
33
148(C)
33
160(D)
125
606
Solution:
Let 488.4! x , Since two digits are repeating multiply both sides by 102, the result is
-8484.484100 ! x
Therefore, -- 8484.48484.484100 ! x x
48099 ! x
99
480! x
33
160! x
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11. A circular table is pushed into a corner of a rectangular room so that it touches
both walls. A point on the edge on the edge of the table between the two points of
contact is 2 inches from one wall and 9 inches from the other wall. What is the
radius of the table?
(A) 20 inches (B) 12 inches (C) 15 inches (D) 17 inches
Solution:
Denote the walls as the x and y axes. The equation of the circle with radius r and
center r r , is 222r r yr x !
The point (2,9) is a point on the circle, we substitute this to the equation of the
circle and solve for r, we have,
22292 r r r !
222 188144 r r r r r !
085222 ! r r
0517 ! r r
17,5 !! r r
because 5!r is not feasible it has to be 17!r
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12. Find the total surface area in square meters of a rectangular solid whose length
is 7 meters, width is 6 meters, and depth is 3 meters.(A) 32 (B) 162 (C) 81 (D) 126
Solution:
Surface Area = whl wlh 222
where l=length, w= width, h = height
Using the formula the Surface area of a rectangular solid in our problem is
162362672372!v
v
v
lw
h
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13. Evaluate the following sum:
1002...181512
(A) 139,659 (B) 156,744 (C) 167,817 (D) 189,463
Solution:
An arit hmetic sequence is a sequence in which the difference between any two
consecutive terms is the same. In our problem the common difference is 3!d . The
sum of the members of a finite arithmetic progression is called an arit hmetic series
To find the sum of a finite arithmetic series, you need to know three things. The
first term ? A1a , the last term ? An
a and the number of terms ? An and use the formula .
¹ º
¸©ª
¨ !2
1 n
n
aanS
In 1002181512 - , 121 !a , 1002!n
a , to get the value of n use the formula for
the t hn term of arithmetic sequence which is d naa
n11 !
d naan
11 !
31121002 �! n
13990 ! n 1330 ! n
331! n
Therefore,
¹ º
¸©ª
¨ !
2
1 n
n
aanS
¹
º
¸©
ª
¨ !
2
100212331
817,167!
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14. Twelve consecutive integers are added together. What is the remainder when
the sum is divided by 4?
(A) 1 (B) 2 (C) 3 (D) no remainder
Solution:
Let x be the first integer. The integers are
x
1 x
2 x
3 x
4 x
5 x 6 x
7 x
8 x
9 x
10 x
11 x
Sum = 6612 x = 21634 x
15. What is three times the sum of x and y given that°¯
£
!
!
1515
230230
y x
y x
(A) 81 (B) 90 (C) 102 (D) 120
Solution:
3030
6022
1515
230230!
°̄
¤
!
!
°̄
¤
!
! y x
y x
y x
y x
y x
Therefore three times the sum of x and y is 903033 !! y x .
Remainder when the sum
of 12 consecutive integers
is divided by 4
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16. What is the slope of the line 123
!y x
?
(A)2
3 (B)
3
2 (C)
3
1(D)
3
2
Solution:
In bm x y ! , m is the slope and b is the y-intercept of the line.
Express 123
!y x
in the form bmx y ! .
123!
y x,Multiply both sides by 6
632 ! y x
623 ! x y
23
2! x y
32!m
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17. The product of a positive number, its square , and its reciprocal is81
100. What
is the number?
(A) 100
81
(B) 81
100
(C)10
9
(D) 9
10
Solution:
Let x be a positive number.
81
10012 !¹ º
¸©ª
¨
x x x
81
1002 ! x
9
10! x
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18. The lines x y ! and
2
9!
x y form a triangle in the first quadrant with the y-
axis. What is the area of this triangle?
(A) 6.75 (B) 7.75 (C) 8.75 (D) 9.75
Solution:
We sketch the graph of the two lines the result is:
4.5 units
3 units
We solve for the point of intersection of the lines x y ! and
2
9!
x y by
substitution method we have, 2
9! x x
92 ! x x
93 ! x
3! x , 3! y
The distance from the point of intersection to the base of the triangle formed is 3
units. Therefore, the height of the triangle is 3 units.
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The difference between the y-intercepts of the lines x y ! and
2
9!
x y is equal
to the height of the triangle which is equal to 4.5 units.
The area of the triangle is half the product of the height and base
units.square75.62
5.43!
v!
19. Simplify the expression x x x x
x
(A)
2 x x
x (B)
x x x
x x (C)
x x x
x2
(D)5
x
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Solution:
x
x x x
x
, it becomes
x x
x x
2
It becomes
x x x
xy2
It becomes
2 x x
x
Use the Law of exponent for power
mnnm
aa !
Use again the Law of Exponent for power
Use the Law of Exponent for product
nmnmaaa
!y
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20. If 2444 1 ! x x , then the value of x x2 is
(A) 24 (B) 212 (C) 510 (D) 525
Solution:
24441 ! x x
244
44 !
x
x
, Multiply both sides by 4 we have,
96444 ! x x
9643 ! x
324 ! x
52 22 ! x
52 ! x
25! x
Therefore, 2
5
2
522 ¹
º
¸©ª
¨y!
x
x
2
12
5!
21
2 55 y!
525!
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21. A cube has a volume of 3125 cm . What is the area of one face of a cube?
(A) 220 cm (B) 225 cm (C) 2
3
241 cm (D) 25 cm
Solution:
The volume of the cube is equal to3
s .
1253 ! s
5! s
The area of one face of a cube which is a square is
252! s
22. The vertex of a parabola hbb x y !2 has coordinates 5,2 . What is the
value of h?
(A) 3 (B) 4 (C) 5 (d) 6
R ecall: The vertex of the parabola k h xa y ! 2 is .,k h
2!b and 5! hb
52 ! h
3! h
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23. The diagonals of a rhombus measure 24 inches and 32 inches. The perimeter
of a rhombus
(A) cannot be determined uniquely from the given information
(B) must be 80 inches(C) must be 280 inches
(D) must be 160 inches
Diagonals of a rhombus are perpendicular and bisect each other.
Using Phytagorean Triple 3-4-5.
Multiply 3-4-5 by 4 it becomes 12-16-20
The hypotenuse is 20. Therefore one side of a rhombus measures 20 inches. The
perimeter of a rhombus is inin 80420 !v
16We just divide 32 by 2
We just divide 24 by 2
12
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24.Simplify:
q p
pq
q
p
q
q p
x x
x
x
¹¹ º ¸©©
ª¨
¹¹ º
¸©©ª
¨
(A)
22 p pq
x
(B)
22 q pq
x
(c) pq
x2
(D) pq
x
Solution:
q p
pq
q
p
q
q p
x
x
x
x
¹¹ º
¸©©ª
¨
¹¹ º
¸©©ª
¨
q p p
p p
x
x
!
pq p
p
x
x! 2
2
pq x!
p x
p x
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29 If you have questions or homework in Math (from elementary to college level) send to us at
[email protected]. Do let us know the deadline of your assignment. Well try our
best to submit the solution on time through your e-mail address.
25. Determine the solution of the following equation.
? A 462143122 ! x x x x
(A) 0 (B)3
2 (C)
2
1(D)
2
3
Solution:
? A 462143122 ! x x x x
? A 46843222 ! x x x x
x21 !
2
1! x
distribute -2 distribute 4
cancel
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26. A car traveled 3 miles south, 9 miles east, and then another 9 miles south.
What is the straight-line distance (in miles) between the point where the car started
and where it stopped?
(A) 21 (B) 36 (C) 37 (D)15
Solution:
To solve this problem, we can use the coordinate plane. The car started at the
origin and stopped at the point 12,9 . We get the distance between 0,0 and
12,9 using the distance formula:
2
12
2
12 y y x xd !
22129 !
225!
15!
9 miles
3 miles
9 miles
12 miles below the x-axis
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31 If you have questions or homework in Math (from elementary to college level) send to us at
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best to submit the solution on time through your e-mail address.
A(5,8)
B(-2,2)
27. Find the y-intercept of the perpendicular bisector of AB where A(5,8) and B(-2,2)
(A) 6.75 (B) 7.75 (C) 8.75 (D) 8.75
Solution:
First we get the slope of AB using the formula
12
12
x x
y ym
!
25
28
!m
7
6!m
The slope of the line perpendicular to AB is the negative reciprocal of 7
6 which is
67 .
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Next we get the midpoint of AB using the formula
¹ º
¸©ª
¨ !
2,
2, 2121 y y x x y x mm
¹ º
¸©ª
¨ !2
82,
2
52
5,2
3!
Next we get the equation of the line with slope of 6
7 and passing through the
point 5,2
3 using the point-slope form of the equation of the line.
11 x xm y y !
¹ º
¸©ª
¨!
2
3
6
75 x y , transpose -5 to the right
52
3
6
7¹
º
¸©ª
¨! x y , distribute
67
512
21
6
7! x y
5
4
7
6
7! x y
4
27
6
7! x y , already in the form ,bmx y ! where b is the y-
intercept
Answer:6.75
y-intercept = 27/4 or 6.75
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[email protected]. Do let us know the deadline of your assignment. Well try our
best to submit the solution on time through your e-mail address.
28. For what value of k will the graph of k x x y ! 23 2 be tangent to the x-axis?
(A)2
1(B)
3
2(C)
3
1(D)
4
3
Solution:
The number of points of intersection of the parabola cb xax y ! 2 and the x-axis
is
±°
±¯
®
!
!!
!"
axis-xtheintersectnotdoes parabolathen the,04I
axis-xthetangentis parabolathen the,04I
pointsat t o parabolatheintersects parabolathen the,04I
22
22
22
cb xa x yacb
tocb xa x yacb
cb xa x yacb
k x x y ! 23 2 is tangent to the x-axis when 03422 ! k
31! k
29. The sum of the first five terms of a geometric sequence is 93. If its common
ratio is 2, what is the first term?
(A) 2 (B) 3 (C) 4 (D) 5
Solution:
Let x be the first term of the geometric sequence
9316842 ! x x x x x
9331 ! x
3! x
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30. A certain number was to be added to2
1 but by mistake
2
1was divided by the
number. However, the correct result was obtained. Find the number.
(A) 1or 2 (B) 1or 2 (C) 1-or 2
1
(D) 1or 4
1
Solution:
212
1
! x x
, multiply both sides by x2 , the result is
x x ! 221
0122 ! x x
0112 ! x x
1or 2
1 !! x x
ANSWER KEY IN UPCAT PR ACTICE TEST 2
1 A 11 D 21 B
2 C 12 B 22 A
3 B 13 C 23 B
4 B 14 B 24 D
5 C 15 B 25 C
6 B 16 B 26 D
7 A 17 D 27 A
8 B 18 A 28 C
9 A 19 A 29 B
10 C 20 D 30 C
UPCAT review tips next page
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UPCAT review tips
MATHEMATICS SCIENCE AND TECHNOLOGY
I. ARITHMETIC I. GENERAL SCIENCE
1. Whole Numbers 1. Effect of earth's motion, shape and inclination
2. Rational Numbers on time and seasonal changes
3. Decimal/Money/Percent 2. Force and motion
4. Measurement 3. Improving, conserving and protecting
5. Ratio and Proportion man's environment
4. Forms and transformation of energy
5. Investigating Matters
II. ALGEBRA
BIOLOGY
1. Integers
2. Algebraic Expressions 1. Reproduction
3. Quadratic Equations 2, Chemical and cellular basis of life
4. Linear Equations/ Inequalities/Equalities 3. Organ Systems
5. Polynomials 4. Life Energy
6. Rational Expression 5. Ecosystem
7. Exponents/ Scientific Notation/ Radicals 6. Genetics -Mendellian patterns of heredity
8. Sequences and Series 7. Diversity of life
III. Statistics CHEMISTRY
IV. Geometry 1. Properties of Colloids
2. Changes of Matter
1. Plane Coordinates/ Lines 3. Restless Molecules -Behavior of Gases
2. Graphs/ Angles 4.Structure of Atom
3. Triangles/ Rectangles/ Circles 5. carbon and its Compounds
6. Properties of Elements
V. WORD PROBLEMS 7. Nature of Solution
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b t t b it th l ti ti th h il dd
PHYSICS
1. Conversion of one unit of measure to another
2. Adding vector quantities (graphically)
3. Acceleration of a Falling Body
4. Object's Motion with rfespect to a
reference point
5. Differentiating distance from displacement
6. Solving average velocity
VERBAL ABILITY
ENGLISH AND FILIPINO
1. Communication Skills- Grammar and
Correct Usage Verbal relationship2. Reading Comprehension Skills
3. Logical Organization
4. Vocabulary
5. Analogy