RTE-MI:
AJ.gebra
&
Trigonomdtry
1.
Three numbers are in A.p. such that the sum of the first and third is 12 and the product of the first and second is 24. Find the largest of the three numbers.2.
ln a
potato race,8
potatoesare
placed6
feet apail on
a straight line, the first being 6 ft frorn the basket. A iontestani starts from the basket and puts one potato at a time into the basket. Find the total distance he must run in order to finistr4.4
8.8
c.6
c.342fl
D.10
D.222ff.
ftid
m if
sre
of
theD- t2,-18
iB. 432 ft
1"-3.
Find the sum of the first 100 positive integers exacfly divisibrebv .7.
A.35,350
8.2,053c.53,350
D.25,536the race: A. 532 ft.
4.
Two workers A and B tqgether can complete a job in 7 days. A works twice as fast as B. How many days woutO it take B to do the job wgrking alone?5.
The first of the three
numbers exceeds twicethe
second number by 4, while the third number is twice the first.lf
the sum of the three numbers is 54, find the largest of the three numbers.A. 10.Sdays: B.21days C. 9 days D. 18 days
4.12
8.32
c.
16
D.6
7-
h
h
ery.-m&2a(m+Ilx+24:O.
dbHG"[Eotg-A-!9"17
B.-tar8
A,24min.
B.20 min. C. 15 min. D.25 min.B. -32.2,69.3 D. 20.9, -61.9
8.
Acaper(er
and his helper together can repair a house in 10days. h takes the helper E days longer than the carpenter to do the repair wften each works alone. How many days would
[{ake
the helper to do the repair if he is to work alone? ' A. 22.8days
B. 7.2days
C. 17.8days
D. 12.2 daysL
Two friendsA
and B are respectively S andg
years old. ln how many years will the ratio of theiriges
be3:4i
4.5
8.6
..c.'.D,7
10.
Royand
RR canjog
arounda
circularpark
in
g
and
12 minutes, respectively. If they start at the same instant from ihesame place, in fiow many minutes will they pass each other
if
they jog around the track in the same aireition?6.
The speed of tr,"@re
b
120 mi/rrr in a carm.with
the wind itcm
aer
a certaindbErce
in 4 hours, but against the wind it cEnoorrr
or*y 3rEd
tlrd
distance in the same time. Find theEhcfydtuphd.
A
10dtr
8.flt
ni,tr
C.Zl
milhr
D. 40 mi/hr{g,rs,-rz
11.
Find the_term containingx'
in the expansion of [x3+(a/g110A.12lat.f
-
C.
tioa?
B.21oa6*
D.32oa?
12,
lf sinxcosx+sin2x =1 , what are the values of x in degrees? A.32.2,69.3
,.._Q.ZO.g, Ot.g
13.
Find the 1Sth term of the progrBsqion1!4Jn,1fiA,...
A.46
B.1/56
i
C:'1t46
D. 5614.
Find the geometric mean betwgen -2 and -g.4.4
B. 16D.6
B. 2: 48.636 sec
D.2:48
min & 30 seci
c.i+
15. ln how manyminutes after 2 o'clock will the hands of the clock extend in opposite directions for the first time?
A. 2: 43min & 0.636
sec
C.2:43
min & 38 sech,,
16.
Vvhicfi of the following is a factor ofxa-+f-lf+2}x+24.
1of 4
17. A number is divided into two parts such that when the .greater part is divided by the smaller, the quotient is 3 and
the remainder is S. Find the smaller number if the sum of the two numbers is 37.
=reeEa=EE.
-e-ffiL
_ _ _ _ _
_
-:'.
A.
(x-3)
B. (x-2) C.(x-1)
D. (x+3)'4.I
8.12
c.32
D.164.3ft
B.5ff
c.4
ft18- What is the probabitity of getting a g exacily once in 3 throws with a pair of
dicef
A.0.033
B.0.263
c.0.862
D.0.75119.
Find the value of A for which the equation A(2x+l)_ .(x-4) = gx+{g is an identity.
A.
-1
B.3
c.2
D. _320.
lf coversed Sin0 = 0.134 , find the value of versed Sin0 .A.
0.8
B.0.3
c.
05
D. 0.221.
A_wheel, 5 ft in diameter, rolls up an incline of 1g"20'. What is the height of the center of the wheelabove the base of the incline when the wheel has rolled up S ftup the incline?
D.6ft
22.
A tree broken over by the wind forms a right triangle w!!frtle
ground. tf the broken partmakejan
angle of b0" with the ground and the top ofthe tree is now ZO n ftomits base, how tall was the tree?
c.45
ft D.36fi
23.
Serren carpefiters and 5 masons eam a total of 2,300 per day. Attre
sarne rate of pay 3 carpenters and g masons earn 2,0rl0. $Jtra( are the wages per day of a carpenter ,and a mason?h.:no
a
tao
c.
210&17o
B.3m&210
D.270&
15024.
Alady started a chain lefter by writing to four ftiendsand requesting each to copy the letter and send it to four other friends. lf the chain was unbroken until the
sth
--'
set of letters was mailed, how much was spent for postage at P8.00 per letter?A.55fi
B.&+fi
A.12,219
8."10,912A.5
kmlhr B. +rWnr
c.21,435
D. 11,291,
Q.8 km/hrD.6
km/hr 25. 28.Determine how much wat0r should be evaporqted from 50kg of 30% satt solution to produce a OO* sait solution. All"percentages are by weight.
!,25
ks
B.35
kg
C. 15ks
D. 18 kgA machine costs PS0,000.00 and depreciates 20%
of
the original costduripg the first year,160/o during the second year,12% during the third year, and so on, for 5 years. What is the value at
thi
end of 5 years?A.
15,000
c.30,000
B.
25,ooo
,'b.,zojoooA boat going across a lake 8 km wide proceeds 2 km at a.certain speed and then completesthe kip at a speed
otlzkmlhr
faster. By doing this, the boat arrives 10 'minutes earlier than if the original speed had been maintained. Find the original speed of the boat. 27.
28.
29.
z varies direc;tly as x and inversely as
f.
tt
x = 1 and y = 2, then z = 2. Find zwhen x = 3 and y = 4.A:1.5
B.3
c.2.5
D.3.5
An audience of 540 people is seated in rows having the same number of persons in each row. lf 3 more'peisons seai in each row, it would require 2 rows less to seat
30. A
group consistsof
n engineers andn
nurses. If two of the engineers are replaced by two other nurses, then 51% of the group members will be nurses. Find the value of n.D.31
4.80
B.110c.55
D. 1004.3
B.5
c.4
D.9
33.
Assuming the earth to be a sphere of radius 3g60 mi, find the distance of a point 36"N latitude from the equalor.REE-MI:
Algebra
&
Trigonometry
the audience. How many persons were in each row originally?
4.17
B. 30C.2484mi
D.4288 mic.
1360800 D.263c.27
c.2&6
D.4&4
31.
lf Juan is 1070 taller than PedrO and pedro is 10% taller than Maria, then Juan is taller than Maria by how many percent?A.2Oo/o
B.18o/o
C.21Yo
D. 11yo32.
A piece of wire of length E2 cm. is cut into two unequal.parts. Each part is then bent to forma
square.lt
is foundtfrit
ttretotal area of the two sguares
is
g7'cm2. Find the difference between the sides of each square.4.2844mi.
B- z+ag mi
3a.
11[ow
many ways can 10 different books be divided amongA, B,
andC
so thatA
gets5
books,B
3
books, andC
2 books?4.2,520
B. so40
35.
From the eguation12f-af+U+18=0,
findthe
valueof
k
if
one root is the negalive of the"ofrrer.A
-18B.-12
c-a7
D. -3136- tf ore
rod
d
$f2€I+k=O
exceeds the ortrer by 2, find the vafueofk
AB
h-)
8.5
D. -637.
The arithmeti! rnean of two numbers is 5, and their harmonic mean is 2415. Find the numbers.38.
A
man has
P100,000,part
of
which he
investedal
12%interest,and
the rest
at
18%.He
receiveda
total
annual interest of P15;300. How much did he investat
18% interesti,qj
55,000D.75,000
39.
Simplify the equation Sin2x(1+cot2x). A.sin'x
C. 140.
A
vertical pole consistsof two
parts, eachone
halfof
thewhole pole.
At a
point inthe
horizontal plane which passes through the fqot of the pole and 36 m frorn it, the upper half ofthe pole subtend an angle whose tangent
is
1/3. How high is the pole?4.72
8.25
c.46
D. 1641.
ABDE is a square section and BDC is an equilateraltrianglepitfr C outside the sguare. Compute the value of angle ACE.
i" A. 30
deg.
C. 50 deg.8.60
deg.
D. 20 deg.42.
The angle of elevation of the top of a tower from a point A is23o30'. From another point B, the angle of elevation of the top of the tower
is
55"30' . The points A andB
are 217.45 mapart and
on the
same horizontal planeas the foot of
the'
tower. The horizontal angle subtended by A and B at the footof$e
tower is 90 degrees. Find the height of the tower.,A.90.6
m
c.
89.s m&3&5
.8:4&6
* rate? 4.45,000 B.60,000 2of4
43.
At a meeting, after everyone had shaken hands with everyone else, it was found that 66 handshakes Were exchanged. How many were at the meeting? .A.10
B.20
c.12
-
D.2444.
A number between 1 and 1000 (inclusive) is randomly selected. What is the probabitity that it wiil be divisibti3411g(rsBm
D.55.9 mo.
1t32 D.1t120c.45ft
D.36ft
47.
Which is identically equalto secx(cok+tanx)?8.86.7
m4.1t28
a.u64
4.55ft
8.64ft
A. cso< B. sinxA.:2,60
8.2,17
Y=x"
Y =x2 C. cosx D. -secx G. 17,-60D.2,60
c.
160,490 D.260,354c'Y=x
D.Y=3x
by4
and5?
lA.0.03
.8. 0.05c.0.04
D.0.0645.
ln the series 1, 1, 1t2, 1t6, 1t24,,..., determine the 6th ternt46.
A tree broken over by the wind forms a right triangle with the ground. lf the broken part makes aningle
of 50. with the ground and the top of the tree is now 20 ft from its base, how tallwas the tree?48.
Woodz was four times as old as LC ten years ago. lf she is now twice as old as LC, how old isWoodz?
-4.15
B.20
c.30
D.2549.
A boat propelled to move at 25 miftrr in still water. trauets 4.2 miles upstream in the same time that ltc n tra**
SEroiles downstream. Find the speed
dthe
stsn
iA
4
B,10
c.8
D. 1250.
Find the value of x which will satisfy the equationJi-zlJi
=t.
c.4
D.0,4A. 1 B. 1,4
51.
Find the sum and product of roots qf the equation x3 +2x2-23x
-60
=0.
52.
The probability that A can solve a given problem is 4/5, that B can solve it is 2/3 and that C can solve it is 3/7. tf all three try, compute the probability that the problem will be solved.A.0.64
.b. o.go8.0.52
D. 0.8153.
ln how many ways can g different books be arranged on a shelf so that 3 of the books are never all 3 together?A.
130,240'9.
ggZ,O+OFind the equation whose roots are numerically eqqal but qpposite in sign to the roots of the equation
t'+7f+11x+S-O
|
$,ixl-l{1llx-5=0
C. x3+7f+11x-S=0 B.
x"+7x2-11x+5=0
D. x3-7f-1 1x+S=0 Determine the sum of the first 10 terms of the sequence whose general term is givenby
3n-2
.4.88225
C.882558t88552
D.88522lf.3logx
-logy
=0,
express y in terms of x. 54.55.
56.
,h:
B.
RTE-M1:
Algebra
&
frigonometry
lf he has twice as many dimes as quarters, and the number of nickels is two less than twice the number of dimes, how many quarters does he have?
A:3
8,8
c.6
D.1058.
An organization has 25 members, 5 of whom are ECE's. ln how many ways c;ln a committee of 3 be formed so as toinclude at leastone ECE?
A.540
.,4.ttOO
C.97059.
Sotve for x in the following equation:x +3x +5x +7x +... +49x = 625
4.1t4
B. 1c.112
D.3t2
60.
lf
x '.!'.2
=
4:
-3'.2
and 2x + 4y-32
= 20 , find x,y,2.A. 4, -5,
2
B. -8, 6,-4
C. 5, -6,I
D. 2,-7,4
61. A
Caf6 Mocha Grande contains 16ozof a
mixture of coffee and Chocolate which is 40% coffee by volume. How much ofthe
mixture shouldbe
removed .and replacedby an
equal volume oJ chocolate so that the resulting Caf6 Mocha will be25o/o cofiee by volume? A. 7,5 liters
8.4
oz
C.2.4 oz62.
lf the sides of the triangle are 2x+3,1+3x+3, and x2+2x, find the grcatest angle.A. 100 deg. B. 130 deg.
Tte
sum anddftrence
of
turo anglesin a
triangle are 90desees
andg)
degrees, respedively. lf the side opposite thesr#
angleb
Z) crn.,fird
Ute area of the tsiangle.ffi.
D.31'lD.6oz
C:120 deg. D. 110 degc.289-6
D- 268.4 C. 120 deg. D. 140 deg.A:t46_4
g_?31.564.
krtiaqte
ABG,angb
A=80 deg. and pointD is
inside theEiangb,
lf
BD and CD are bisectors of angle B and C, solveturthe angle BDC. A. -!00 deg.
t:,lPoo"n'
65.
A statistical clert submitted the following reports. The average rate of production of radios is 1.5 units for every 1.5 hrs workby
1.5
workers.How many
radioswere
producedin
one rronth by 30 men working 200 hrs during the month?A.4000
B: seoo
66. A
class of40
students took examinationin
Etectronics and Communications.lf
30
passedin
Electronics,36
passed in Communicationand
2
failed
in
both
subjects,how
many students passed in both subjects?c.5000
D.4200
c.26
D.32The excess of the sum of the fourth and
fifih
parts over the difference of the half and third parts of a number is 119. Find the number,4.240
8.320
67. ,.A.28
B.30 A. bearing B. azimuth \.c..420 D.430,
C, direction D. course68.
How many terms of the progression 4,7,
10,13,.
. . must be taken so that the sum will be 69.4,6
B.I
C.8
D.1269. What is the angle measured
in
degrees clockwise from the north to the direction in which thecarier
is traveling.An urn contains 4 white balls and 3 black balls. Another urn contains 3 white balls and
5
black balls.lf
one ball is drawn from each urn, determine the probability that the balls drawn will be 1 white and 1 black.70.
3
of4
71.
Three friends A, B, and C can do a piece of work int
hours working together. Working alone, A can do the work in 6 hours more, B in
t
hour more, and C in twice the time if all working together. How long would it take to finish the work if att working,together?4.27t56
B. 9/56A.20
mins,8.30
mins. the incline?A.3ft
B.5ft
A:240 km. B. 180 km A. 17.545 '8.19.8064.45.74
8.63.62,A2:43.64
B.2:43.46 4.3144 rada
3le+ rad A. function B. domain ,Io:1uJr-G. 29/56 D.5t14I
C.40
mins. 'D. 50 mins C.2A.87 m D.24.27 m c..4fi
C.320 km. D.200 kmc.
18.525 D. 14.507 C.2:34.64 .D.2:34.46 C.4/33 rad D- 4143rad72.
A golf ball is dropped from a height of 6 meters. On each rebound it rises 2/3 of the height from which it last fe[.What distance has it
traveledlt
the instant it strikes the grognd for the 7th time?A.27.89 m B. 19.86 m
73,
A wheel, 5fi
in diameter, rolls up an incline of 18"20'. What is the height of the center of the wheel above the base of the incline when the wheel has rolled up 5 ff upD.6ft
74.
The velocity of an airplane in still airis
125 kph. The velocity.of the wind due east is 25 kph. If the ptane travels dast and returns back to its base again in 4 hours, at what distance does the plane travel due east?75.
ln a racing contest, there are 240 cars which will have provisions that will last for 15 hours. Assuming constanthourfi consumption for eacfr car, how long will the fuel
prwisions last if
I
cars withdraw from the race every hour afier the first?4.16
8.18
c.20
D.25
76.
The sum of the sides of a triangle is equal to 100 cm. lf the angles of the triangle are in the continued proportions of1:2:4. Compule the shortest side of the triangle.
77.
The sides of a triangular field which contains an areaof
2400 sq. cm. are in continued proportion of 3:5:7. Find the smallest side of the triangle,
G.95.43
',D.57.67
78.
What time after 2 o'clock will the hands of the clock extend ,,in.opposite directions for the first time?79.
Tvrlo cities 270 mi apart lie on the same meridian. Find therdifference in latitude.
80.
lt is a set of ordered pairs of numbers.81.
The set of points in a plane such that the difference of the distances of each point of the set from two fixed points (foci) in the plane is constant.C. range . D. relation C, Circle D. Ellipse C. 180 ways D. 320 ways A. Parabola
.8.
Hyperbola82.
ln how many ways can a party of 6 people be seated on a row of 6 seats if a certain 2 refuse to sit next to each other?A. 240 ways B: 480 ways
_rE lrrvlauq:,rlrv,
95. The vibration frequency of a string varjes as the square length and diameter of ihe string. lf the itring is 3 feet long and 0.03 inch in diameter vibrates at
7i0
times per second under g0 lbs tension, at what frequencv will a 2 feet long, 0.025 inch string vibrate under 2500 tbs tension.A.6210
c.6830
8.7514
D.564596.
The hypothesis of conditionalstatement. The"if
part of an "if-then" statement.{'antecedent
B. postulate 97. 98. 4.349,800 ts.549,600 C. condition . D. theorem c.469,500o.369,600
A compound statement that says one sentence is true
if
and only if the other sentence is true.
f.
dependentstatement
C. independent statementB.biconditionalstatement
D.conditionalstaiementT_here are 3 copies each of 4 different books. ln how many different ways can they be arranged on a shelf?
99.
The distance passed over by a certain pendulum bob in succeeding swings form the geometric progression 16, 12,9,... feet respectively. Calculate the totai distance traversed by the bob before coming to rest.4.64ft
B.75ft
c.54ft
D.96ft
100.At what price should Book Latte mark a book that costs F30O in order that it may ofier a
disount
of 20yo on tfre marked price and still make a profit ol 21o/o on the selling price?A.400
.
B.5@
C.450
D.70O83.
Find the real vatues of'x and y satisfiing the given equation:(2x+3y)+ i(3x-5y) = 8-i7 .C. x=2,y=1 D,"x=2,y=-1
Algebra
&
Trigonometry
c.
1500 D. 1250 C. 3.1 days , D.f.03 daysc.
10, 11, 11 , D: 1.1, 11, 11 A. x=1 , y=-2 B. x=-2, y=-184.
Missy goes to a bake shop to buy some pastries for resale at Booklatte. She spends half her money for Revel Bars, and one-third of what remains for Triple Chocolate Brownies. She spends 150 for other pastries and still has 200 left from the amount she originally had. How much money did shq haveatthe start?
85.
86.
Roy met Mark and RR walking hand in hand in Trinoma, and because of jealousy he decided to walk northward away from
the two at the rate of 2 m/s while the two went to the east at
the rate of 0.5 m/s. afler how many minutes will the distance between them be 250 m?
A. 121
mins
,"C,2
mins8.60
mins
"ii.
1 minHow many liters of
a
25o/o acid solution must be added to g0liters of
a
40o/o acid solution tci havea
solution that is 30%i*",tosa
*9.5100
A. 10, 10, 11
B; 10,11 , 12
87.
Engr. RR walks at the rate of6
mph to the LRT station. Shethen
takesthe
LRTto work,
averagingat 60
mph.if
she spends 15 minutes less time on the LRT than walking, and the distancefiom her
houseto
work
is
29
miles, wtratis
the disEnce fro{n her house to the LRT station?acid?
A. 160
L
8.90
Lc.
100 L D. 120 LA
3
.8.1
'.-_j
c.5
D.6
Three
fienG
A, B, and C are in a rztce. The oddstrat
A will win ale 7 to 5, and the odds that Bwillwin'are
1 to 3. What are the odds in favor of C?A.1to4 B.3to2
'Q,1,to5
D.2to5
Two numbers differ by 40 and their arithmetic mean exceeds their geometric mean by 2. Whalare these numbers? A. 75 &
115
B. 45 &85
C.8.1&121
D. 88 &128 Which of the following is a prime number?A.437
8.483
c.417
,iD.4g791. A
and B working together cando
ajob in 3
days, B and Ctogether can do the same job in 4 days, and A and C in 2.5 days. ln how many days can all of them finish the job working together?
A. 1.07 days B. 2.8 days "
Find the mean, median and mode respectiv.ely of the following numbers; 13,13,
14,12,11,10,9, 11,8,11,5,
and 15. 88.89.
90.
93. The age
of
Diophantus,a
Greek
mathematicianmay
becalculated
from
the
epitaph
which reads
as
follows: 'Diophantus passed 1/6 of his life in ohildhood, 1112 in youth,117 as
a
bachelor. Five years after his marriage was born a son who died 4 years before his father at half his father's finalage.'How old was,Diophantus when he died?
A.80
8.82
Your father
told you "[ was your age
now when you werebom'. lf you are 21 years old today, how old is your father?
.c.78
'.D"'84A50
Br42
i-,.c.48
D.44
k
94.4ot4
UIIU . AIIU t tr. VgV I
---r----Algebra
& Erigonometry
101. This states that every integral rational equation has at leastone root.
A. Fundamental Theorem of Arithmetic
p. Fundamental Theorem of Counling
,C. Fundamental Theorem of Algebra D. Fundamental Theorem of Eq-uations
102. The logarithm of the reciprocal of a numberis called
103. How many differenl signals, each consisting of 8 flags hung in a vertical line, can be formed from 4 identical white flags and 4 identical blue flags?
&.70
B. 1680
104. Find lhe mean deviation for the following set of data: {10, 20,
A. lnverse Logarithm B. Cologarithm C. lndex D. Briggsian Logarithm
c.
140 D.3360c.60
D. 3.33 C,r28.6 mph D. 38.5 mphc.4.83
D.6.63c.3t26
D.1t2197c.
13/3888 D.25t7776c.1t16
D.1t21Ac.
0.051 D.0.238c.84/14s
D.37t425c.0.0584
D.0.0093 301A.6.67
8.20
105. Rex travels 50 miles at the rate of 20 mph and then on a free way travels the next 50 miles at the rate of 50 mph. Wtrat is his average speed?
A. 35.0 mph
8.48.8
mph106. Find the quadratic mean of {2, 4, 6, 8, 10}
107. Find the probability of obtaining an ace on three draws frcm a
dd
of cards when there is no replacement befiore the next one is draam.A. 1/525
'8.
115525
108. The probability of throwing at least
4
aces in 5 throvra of a die.4.23t648
B.5t1944
109. A new phone is being installed at the Allado's residence. Find
the
probabilitythat
lhe
final
four digits
in
the
telephone number will be odd.4.4t7
8.256t2401
110. Find the probability of throwing at least one ace
in
10 throws of,a die.4.0.838
B. 0.161
11 1. Two cards are drawn at random from a standard deck of E2
cards. What is the probability that both are diamonds?
A.3.33
8.5.50
4.13t52
8.7t13
4.0.0385 8.0.0835c.7t26
1,.p."1t171'12. A committee of 5 people is to be selecded from a group of 6 men and 7 women. VUhat is the probability that the committee will have at leasl 3 men?
A.59/143 8.14At292
113. Billie guesses
on all
10 questionson
multiple choice quiz, each number having four choices, What is the probability that exactly hatf of the'answers arc correct?114. A line map was drawn at a scale of 1:50,000. An enor of 0.05
mm
in the
drawingis
equivalentto
how
many rneters in _ac{ual?,A. p.s m
c.0.25
m5of5
!ola!@p@s
gc$\t
8.250
mD.25
m115. A flagpole 3 m high stands at the top of a pedestat 2 m hii:rh
located at one side of a pathway. At the opposite side of tire pathway directly facing
the
flagpole,the
flagpole subten:lsthe
same angleas the
pedestal. \A/hatis the
widthof il
e pathway?116. Two sides of a triangle measure 18 cm and
6
cm. The third side may be:A. 12 cm
B.
13 cm A.3.21 m B. 5.25 mA.
Unary matrix Ef Unit matrix A. nonillion B- ododecillionA.
1.15 hrs B. 1.125 hrs A. P180.00 B. P170.00 C. rt.47 m D.6.28 m C. 10 cnr D. 11 cm C. tdentity matrix D. Nullmatrix C. novemdecillion D. octillion C. 1.325 hrs D. 1.525 hrs Q.3:22.22 D.3:44.44c.
P150.00 D. P225.00118.
are functions which can be expressed using arithmelic operations and vrrhose values are either rational or a root 01 a rational number.A.Transcedentalfunctions
C. lnationalfunctionsB. Algebraic
functions
D. Logarithmic functions'l 19. The number follow ed by 27 zeroes is called
120. The hypothesis that an integer
"n'
is primeifi
it satisfies tiiecondition
2
n-2
is divisible byn-A. Goldbach's
conje€ture
C. Chinese hlryothesis B. Wlson's Theorem D. Ob typothesis121. The ages
ofthe
molher and her daughter are 45ard
5 year;,rcspectivety.
Hor
many years will the mother bethre
tim: s as old as herdaughterwill?A.5
B.10
!.c.
15122. A pipe can fill up a tank with the drain open in three hours.
lf
the pipe runs with the drain open for one hour and then trre drain is closed, it will take 45 more minutes for the pipe to iill the tank, if the drain will be closed at the start of filling, h<rw
long will it take the pipe to fill the tank?
D.20
123.
'
A man left his home atpasl3:00
PM as indicated in his wllll clock. Between twoto
three hours after, he retumed horile and noticed that the hands of the clock interchanged. At wl.rat time did he left his home?4.3:27.27
d.s:gl.lz
124.
A
group consist ofn
boys andn
girls. If two of the boys*re
replaced by two other girls, then 49olo of the group memh#r will be boys. Find the value of n.
A.
100
8.49
c.50
D.51125. On his Christmas sale, a merchant marked
a
pairof
slipp,r*nP180.00, which is 2oolo olf the normal retail price. lf the retall
price