.
PUNSUP MOCK TEST FOR QUERY CALL 94636-12090
PUNSUP MOCK TEST
TOTAL TIME:-120 MINS
(1-4) suMB insMuB pT`ieE` jm dy D`m no
ieMdR s@d bul`ieE` r`j EBKyK no
isr pr CqR iPr`ieE` r`jy ieMdR dy
caudr lok~ C`ieE` jsu jgm`q d`
durg` p`T bx`ieE` sBy pauVIE~
Pyr n` jUnI E`ieE` ijin eyh g`ieE`
1. iks nUM r`j EiBSyk leI bul`ieE` igE` ?
(A) kubyr nUM
(B) jm nUM
(C) ieMdr nUM
(D) gMDrv nUM
2. iks dy isr au @qy Cqr Jul`ieE` igE` ?
(A)jm dy
(B)kubyr dy
(C)durg` dyvI dy
(D)ieMdr dy
3. cOdH~ lok~ (s`ry sMs`r) iv@c iks d` j@s PYl igE` ?
(A)ieMdr d`
(B)durg` dyvI d`
(C)dyviqE~ d`
(D)r`KS~ d`
4. ikhV` p`T krn v`l` jUn~ iv@c nhIN pYNd` ?
(A)gIq` d`
(B)rm`iex d`
(C)durg` p`T d`
(D)gurU gMRQ s`ihb d`
5. sroq B`S` qoN tIc` B`S` is@Kx leI ikhVI ivDI mdd krdI
hY ?
(A)mul~kx ivDI
(B)Enuv`d ivDI
(C)pRq@K ivDI
(D)k`rj ivDI
6. bolI ikMny pRk`r dI huMdI hY ?
(A)3
(B)4
(C)2
(D)1
7. s`ry, keI, k@uJ, sB, Sbd hn :
(A)sMbMD v`ck pVn~v
(B)pRSn v`ck pVn~v
(C)EinScyv`ck pVn~v
(D)inscy v`ck pVn~v
8. gxr`j
(A)pRj`qMqr
(B)prqMqr
(D)lokqMqr
(C)gxqMqr
9. ij@Qy is@ky GVy j~dy hn, aus nUM kI ikh` j~d` hY ?
(A)S`ml`t
(B)lVI
(C)tks`l
(D)bMjr
10. gurU gMRQ s`ihb dI hzUrI iv@c kIqy PYsly nUM kI ikh` j~d`
hY?
(A)hukmn`m`
(B)gurm@q`
(C)imsl
(D)ienH~ iv@coN koeI nhIN
Directions(11-13):- Each question consist of two words
which have a certain relationship to each other
followed by four pairs of related words, Select the pair
which has the same relationship.
11. TEN:DECIMAL
(A) seven:septet
(B) four:quartet
(C) two:binary
(D) five:quince
12. MUNDANE:SPIRITUAL
(A) common:ghostly
(B) worldly:unworldly
(C) routine:novel
(D) secular:clerical
13. ARMY:LOGISTICS
(A) business:strategy
(B) soldier:students
(C) war:logic
(D) team:individual
Directions (Q. 14-16): Which of the phrases (A), (B),
(C) and (D) given below should replace the phrase
given in bold in the following sentence to make the
sentence grammatically meaningful and correct.
14. Your bonus will dependent the quality of your
work.
(A) is dependable
(B) depends on
(C) being dependent
(D) going to depend
15. He did not ask for a raise since he had fear to lose
his job.
(A) was fearful of
(B) was feared of
(C) was afraid to
(D) had been afraid to
16. The organisers agreed to shift the conference at
some place convenience to all participants.
(A) any of the place convenient
(B) at places convenient
(C) from a place of convenience
(D) to a place convenient
(E) No correction required
Directions (Q. 17-20): Pick out the most effective word
from the given words to fill in the blanks to make the
sentence meaningfully complete.
17. The police had to use force to ________ the rioting
mob and establish law and order.
(A) provoke
(B) beat
(C) outnumber
(D) control
18. If you fail to ________ your authority properly, they
will remove you.
(A) know
(B) exercise
(C) work
(D) challenge
19. Results of all these plans would be ________ if they
are not properly implemented.
(A) futile
(B) fruitful
(C) destroyed
(D) encouraged
20. Since the clerk refused to do his work, he has now
requested the officer to look ________ the matter.
(A) at
(B) after
(C) into
(D) for
21. In which book the word “PUNJAB” for the first
time mentioned
(A) Tarikh-E-Sher-Shah
(B) Ain-E-Akbari
(C) Tuju-i-Janhangeri
(D) Tarik-i-Punjab
22. Which book mentions that ther territory of Punjab
was divided into two provinees of Lahore & Multan?
(A) Ain-i-Akbari
(B) Tuju-i-Babri
(C) Muntakhib-ul-Lubab (D) Asrar-i-Samadi
23. When did Arabs advanccd to the land of fire ,rivers,
occupying Multan?
(A) 709-711 AD
(B) 711-713 AD
(C) 713-714 AD
(D) 714-716 AD
24. Which of the following is not the guidelines given
by Guru Nank Dev Ji?
(A) Naam Japna
(B) Vand Chakna
(C) Kirat Karni
(D) Daswand
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PUNSUP MOCK TEST FOR QUERY CALL 94636-12090
25. Which one of the following works does not belong
to Guru Nanak Dev Ji?
(A) Sidh Joshi
(B) Barah Mah
(C) Asa di vaar
(D) Sukhmani Sahib
26. Which Guru introduced a new alphabet known as
modifying the old Punjab scripts character.
(A) Guru Nanak Dev Ji
(B) Guru Amar Das Ji
(C) Guru Angad Dev Ji
(D) Guru Gobind singh
27. Which one is not the contribution of Shri Guru Ram
Das Ji?
(A) The hymns of the marriage rites; Anand Karaj
(B) Designed the Golden Temple.
(C) Established Manji system
(D) Planned & Created the township of Ramdaspur.
28. During whose time Akbar attended Guru da Langar?
(A) Guru Ram Das Ji
(B) Guru Amar Das Ji
(C) Guru Har Gobind Ji
(D) Guru Arjun Dev Ji
29. Which Sikh women has been described as a first
women commander-in-chief?
(A) Bibi Mai Bhago
(B) Rani Jindan
(C) Sada kaur
(D) Bibi Khem kaur
30. Who was the only women in the Indian
Subcontinent to win a battle over a British General?
(A) Bibi Sahib kaur
(B) Bibi Sada kaur
(C) Rani jindan
(D) Bibi Bhani
31.Who made the concept of community kitchen a
reality?
(A) Bebe Nanki
(B) Mata Tripta
(C) Mata Khwi
(D) Mata Ajit Kaur
32. Guru Gobind Singh detailed the entire Granth Sahib
at
(A) Darbar Sahib Amritsar
(B) Goindwal Sahib
(C) Kesh Garh Sahib Anandpur
(D) Damdama Sahib
33. Which one is wrongly matched?
(A) Nakai Misl ---- Sardar Hira Singh
(B) Kanahiya Singh ---- Sardar Jai Singh
(C) Dalliwalia Misl ---- Sardar Gulab Singh
(D) Phulkian Misl ---- Sardar Hari Singh
34.When was NankShahi Rupee was Introduced?
(A) When Ranjit Singh declared himself Maharaja Of
Punjab
(B) When Ranjit Singh conquered Multan
(C) When Ranjit Singh Defeared Britishers
(D) When Ranjit Singh Defeated Mughals.
35.Who was Kohinoor Diamond to Ranjit Singh.
(A) Nawab Muzaffar Khan
(B) Dost Muhammad Khan
(C) Misr Diwan Chand
(D) Yar Muhammed Khan
36. Namdhari Movement was properly known as.
(A) Kuka Movement
(B) Gadhar Movement
(C) Phulkian Movement
(D) All of above.
37. Which Movement is considered as the first purely
secular movement which aimed as to liberate india by
force of arms?
(A) Namdhari Movement (B) Quit Indian Movement
(C) Kuka Movement
(D) Ghadar Movement
38.Mastana Dal was included in which movement?
(A) Kuka Movement
(B) Gadhar Movement
(C) Non Cooperation Movement
(D) Revolt of 1857.
39. Kamagata Maruship belonged to which country?
(A) Singapore
(B) Japan
(C) Canada
(D) America
40. Who is popularly Known as “Kirpan” Bahadur”?
(A) Lala Hardyal
(B) Kartar Singh Sarabha
(C) Sewa singh Thikriwala (D) Sohan Singh Bhakna
41. Which company launched its new e-mail service by
the name "Inbox"?
(A) Microsoft
(B) Rediff
(C) Yahoo
(D) Google
(E) None of these
42. Which of the following statements is correct
regarding proposed changes to the auction method of
Coal Blocks by the Coal Ministry?
(A) Allocation to be done through Screening Committee
Mechanism
(B) Auction to be done through production linked
payment mechanism
(C) Both A & B
(D) Neither A nor B
(E) None of these
43. Benjamin Bradlee died recently. He was associated
with which of the following newspapers?
(A) The Wall Street Journal
(B) Huffington Post
(C) The Washington Post
(D) None of the above
(E) None of these
44. Which of the following agreements/conventions
govern the sharing of tax evasion information sharing?
(A) Double Taxation Avoidance Agreements
(B) Tax Information Exchange Agreements
(C) Multilateral Convention on Mutual Administrative
Assistance in Tax Matters
(D) All of the above
(E) None of these
45. United Stock Exchange recently merged with ?
(A) NSE
(B) BSE
(C) MCX
(D) NSEL
(E) None of these
46. Terry Walsh was in news recently. He is ?
(A) Football coach for India
(B) Cricket coach of indian team
(C) Hockey coach for team india
(D) Not related with India
(E) None of these
47. Player known as "Blade Runner" was recently jailed.
What is his real name?
(A) Usain Bolt
(B) Jastin Gatlin
(C) Oscar Pistorius
(D) Milkha Singh
(E) None of these
48. Oscar Pistorious who was recently jailed is athelete
from which country?
(A) germany
(B) france
(C) south Africa
(D) australia
(E) None of these
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PUNSUP MOCK TEST FOR QUERY CALL 94636-12090
49. 31st october will be celebrated as "Rashtriya Ekta
Diwas". In whom memory it will be celebrated?
(A) Subhas chandra bose
(B) Mahatma Gandhi
(C) Tej bahadur sapru
(D) Vallabh bhai patel
(E) None of these
50. Which among below is NOT part of "Labour
Reform"?
(A) Shram Suvidha Portal
(B) Universal Account Number
(C) Random computer inspection scheme
(D) Jan Dhan Yojana
(E) None of these
Directions (Q. 51-55): In each question below, a
question is followed by information given in three
statements. You have to decide the information given
in which of the following statements is necessary to
answer the question.
51. How is A related to T?
I. A’s father Q is brother of S. S is T’s wife.
II. A is son of Q. Q is brother of S. S is T’s wife.
III. T is father of two children.
(A) Only I
(B) Only II
(C) Only I and II (D) Only II and III
52. How many months did Vikas take to complete his
project work?
I. Mahesh correctly remembers that Vikas took more
than two months but less than seven months to complete
his project.
II. Pinki correctly remember that Vikas took more than
5 months but less than 10 months to complete his
project.
III.Amit correctly remembers that Vikas completed his
project within the first year.
(A) All I, II and III together
(B) Only II
(C) Only I and II
(D) Only I and III
53. Anu, Manu, Ravi, Sahil and Mohit are sitting around
a circular table facing the centre. Who is on the
immediate left of Ravi?
I. Only Anu is sitting between Manu and Mohit.
II. Anu is on the immediate left of Manu.
III. Sahil is on the immediate left of Manu.
(A) All I, II and III together
(B) Only II
(C) Only II and III
(D) Only I and III
54. Who among Subodh, Neeraj, Tara, Meena and Anil
is the first student to take the lecture?
I. Subodh takes lecture before Meena and Neeraj but not
before Anil.
II. Tara is not the first student to take the lecture.
III. Meena is not the last student to take the lecture.
(A) Only I
(B) Only I and II
(C) Only I and either II or III
(D) All I, II and III are necessary
55. Z is in which direction with respect to X?
I. Y is to the south of X, and Z is to the east of P who is
to the north of Y.
II. P is to the south of X.
III. P is to the west of T.
(A) Only I
(B) Only II and III
(C) All I, II and III together
(D) Only I and II
56. If in the word CERTIFICATE, the first and the
seventh letters are interchanged, similarly the second
and the eighth letters are interchanged up to the fifth and
eleventh letters are interchanged then which letter will
be third to the right of sixth from the right end?
(A) T
(B) R
(C) A
(D) C
57. If ‘road’ is called ‘car’, ‘car’ is called ‘train’ ,
‘train’ is called ‘school’, ‘school’ is called ‘house’ and
‘house’ is called ‘office’ then where do children go for
study?
(A) Car
(B) School
(C) Train
(D) House
58. How many such pairs of letters are there in the word
DOCUMENT, each of which has as many letters
between them in the word as in the English alphabet?
(A) None
(B) One
(C) Two
(D) Three
59. If it is possible to make only one meaningful world
from the first, the third, the fifth and the eighth letters of
word ENTERPRISE using each letter only once, first
letter of the word is your answer. If more than one such
word can be made your answer is ‘X’ and if no such
word can be made your answer is ‘Y’.
(A) P
(B) S
(C)T
(D) X
60. Four of the following five are alike in a certain way
and so form a group. Which is the one that does not
belong to the group?
(A) Picture
(B) Painting
(C) Sketch
(D) Paint
61. If the digits of the number 5726489 are arranged in
ascending order, how many digits will remain at the
same position?
(A) None
(B) One
(C) Two
(D) Three
62. In a row of children facing north, Manish is fourth to
the left of Suresh, who is tenth from the left end. Nisha
is second to the right of Suresh and eighth from the right
end of the row. Total how many children are there in the
row?
(A) 19
(B) 20
(C) 21
(D) 18
63. A is sister of B. C is brother of D. D is a sister of A.
How is B related to D?
(A) Brother
(B) Brother or Sister
(C) Sister
(D) Data inadequate
64. In a certain code PEAK is written as ‘3512’ and
DINE is written as ‘6895’. How is KIND written in that
code?
(A) 2396
(B) 2986
(C) 2896
(D) 2596
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PUNSUP MOCK TEST FOR QUERY CALL 94636-12090
5) None of these
65. Navin walked 20 metres towards East, took a left
turn and walked 10 metres and again took a left turn and
walked 20 metres. How far, is he from his starting
position?
(A) 10 metres
(B) 50 metres
(C) 40 metres
(D) 30 metres
Directions (Q. 66-70): Read the following letter-symbol
sequence carefully and answer the questions given
below:
$AFIS@#USR$OMPS@S#EQSOY$#
WS@LK
66. How many such ‘S’ are there in the above sequence
which are immediately preceded by a letter and
immediately followed by a symbol?
(A) Four
(B) Six
(C) Two
(D) None of these
67. If all the symbols are dropped from the above
sequence which of the following letters will be exactly
midway?
(A) P
(B) S
(C) E
(D) Q
68. How many times the symbol ‘$’ precedes by a
symbol and follows by a letter?
(A) None
(B) One
(C) Two
(D) Four
69. If all the symbols from the above sequence are
dropped and all the letters are written in the reverse
order, what will be the position of ‘P’ from left end?
(A) Ninth
(B) Thirteenth
(C) Tenth
(D) None of these
70. If the second half of the above sequence is written in
the reverse order, which of the following will be middle
pair of elements?
(A) S@
(B) SL
(C) KS
(D) S#
Directions (Q. 71-73): What should come in place of
the question mark (?) in the following questions?
71. 34.95 + 240.016 + 23.9800 = ?
(A) 299.09
(B) 298.0946
(C) 298.111
(D) 298.946
72. 48.95 – 32.006 = ?
(A) 16.089
(B) 16.944
(C) 16.35
(D) 16.89
73. 3889 + 12.952 – ? = 3854.002
(A) 47.95
(B) 47.752
(C) 47.095
(D) 47.932
Directions (Q. 74-75):- The following table gives information on the production volumes, unit price and unit cost of a
product
Production volumes (V) No. of units
1000
2000
3000
4000
5000
6000
7000
Unit price (P)
140
125
110
100
90
75
65
Unit cost (C)
100
95
90
80
75
70
60
Let the contribution, C, be defined as C = V * (P-C)
(A) 50
(B) 75
(C) 60
(D) 90
74. At Which volumes, will the contribution be
80. When a number is divided by 31 the remainder is
maximum?
29. When the same number is divided by 16, what will
(A) 2000
(B) 3000
be remainder?
(C) 4000
(D) 5000
(A) Data inadequate
(B) 13
75. At which volumes, will the contribution be
(C) 15
(D) 11
minimum?
(A) 4000
(B) 5000
Directions (Q. 81-82): Each of the questions below
(C) 6000
(D) 7000
consists of a question and two statements numbered I
76. A businessman purchased a plot of land for Rs
and II given below it. You have to decide whether the
1,60,00,000. He then spent 280 per cent of the cost of
data provided in the statements are sufficient to answer
land for constructing 28 flats. At what price should he
the question. Read both the statements and Give
sell each flat to make 25 per cent profit?
answer —
(A) if the data in statement I alone are sufficient to
(A) Rs 15,00,000
(B) Rs 25,00,000
answer the question, while the data in statement II
(C) Rs 18,00,000
(D) None of these
alone are not sufficient to answer the question.
77. Four of the five parts numbered (A), (B), (C), (D)
(B) if the data in statement II alone are sufficient to
and (E) are exactly equal. Which of the parts is not
answer the question, while the data in statement I alone
equal to the other four? The number of that part is the
are not sufficient to answer the question.
answer.
(C) if the data either in statement I alone or in
(A) a2 + b2 - 4ab (B) = (a + b)2 - 6ab
statement II alone are sufficient to answer the
question.
(C) = (a – b)2 - 2ab
(D) = (a - b) a - b (a - b) -ab
(D) if the data in both the statements I and II together
78. Two-fifths of one-third of three-sevenths of a
are not sufficient to answer the question.
number is 15. What is 40 per cent of that number?
(E) if the data in both the statements I and II together
(A) 136
(B) 140
are necessary to answer the question.
(C) 72
(D) 105
81. What was the ratio between the ages of P and Q four
79. If 3167 is added to 4093 and the sum is divided by
years ago?
145, approximately what will be the outcome?
I. The ratio between the present ages of P and Q is 3 : 4.
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PUNSUP MOCK TEST FOR QUERY CALL 94636-12090
II. The ratio between the present ages of Q and R is 4 :
5.
82. What was the cost price of the suitcase purchased by
Samir?
I. Samir got 20 per cent concession on the labelled
price.
II. Samir sold the suitcase for Rs 2000 on the labelled
price.
83. Somesh bought a microwave oven and paid 10%
less than its original price. He sold it at 30% profit on
the price he had paid. What percentage of profit did
Somesh earn on the original price?
(A) 32%
(B) 11%
(C) 20%
(D) 17%
84. In how many different way can the letters of the
word DESIGN be arranged so that the vowels are at the
two ends?
(A) 24
(B) 36
(C) 48
(D) 72
85. A trader purchased an old bicycle for Rs 480. He
spent 20% of the cost on its repair. If he wants to earn
Rs 144 as net profit on it, how much percentage should
he add to the purchase price of the bicycle?
(A) 50%
(B) 48%
(C) 96%
(D) 100%
86. One-third of Ramani’s savings in National Savings
Certificate is equal to one-half of his savings in Public
Provident Fund. If he has Rs 150000 as total savings,
how much has he saved in Public Provident Fund?
(A) Rs 60000
(B) Rs 50000
(C) Rs 90000
(D) Rs 30000
87. A man spends Rs 1810 for buying bedsheets at Rs
200 each and pillows at Rs 70 each. What will be the
ratio of bedsheets to pillows when maximum number of
bedsheets are bought?
(A) 3 : 8
(B) 8 : 3
(C) 9 : 1
(D) 1 : 9
88. 765 chairs are to be arranged in a column in such a
way that the number of chairs in each column should be
equal to the columns. How many chairs will be excluded
to make this arrangement possible?
(A) 6
(B) 36
(C) 19
(D) 27
89. Of the 200 candidates who were interviewed for a
position at a call center, 100 had a two-wheeler, 70 had
a credit card and 140 had a mobile phone. 40 of them
had both, a two-wheeler and a credit card, 30 had both, a
credit card and a mobile phone and 60 had both, a two
wheeler and mobile phone and 10 had all three. How
many candidates had none of the three?
(A) 0
(B) 20
(C) 10
(D) 18
90. For what value of 'm' will the quadratic equation x2 mx + 4 = 0 have real and equal roots?
(A) 16
(B) 18
(C) 2
(D) -4
91. Which of the following displays the contents of
active cell?
(A) Toolbar
(B) Menubar
(C) Namebox
(D) Formula bar
92. What type of program controls the various computer
parts and allows the user to interact with the computer?
(A) Utility software
(B) Operating system
(C) Word processing software
(D) Database program
93. What is backup?
(A) Adding more components to your network
(B) Protecting data by copying it from the original
source to a different destination
(C) Filtering old data from the new data
(D) Accessing data on tape
94. Network components are connected to the same
cable in the ________ topology.
(A) star
(B) ring
(C) bus
(D) mesh
95. Which of the following is the largest unit of storage?
(A) GB
(B) KB
(C) MB
(D) TB
96. Windows 95, Windows 98 and Windows NT are
known as
(A) processors
(B) domain names
(C) modems
(D) operating systems
97. Information on a computer is stored as
(A) analog data
(B) digital data
(C) modem data
(D) watts data
98. A program that works like a calculator for keeping
track of money and making budgets is
(A) calculator
(B) scholastic
(C) keyboard
(D) spreadsheet
99. ________ is processed by the computer into
information.
(A) numbers
(B) processor
(C) input
(D) data
100. To find and load a file that has been saved
________.
(A) select the Close command
(B) select the New command
(C) select the Save command
(D) select the Open command
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PUNSUP MOCK TEST FOR QUERY CALL 94636-12090
PUNSUP MOCK TEST
ANSWER KEY
1(C)
2(D)
3(B)
4(C)
5(B)
6(C)
7(C)
8(B)
9(C)
10(B)
11(C)
12(B)
13(A)
14(B)
15(C)
16(D)
17(D)
18(B)
19(A)
20(C)
21(A)
22(A)
23(B)
24(D)
25(D)
26(C)
27(C)
28(B)
29(A)
30(B)
31(C)
32(D)
33(D)
34(A)
35(B)
36(A)
37(D)
38(A)
39(C)
40(C)
41(D)
42(B)
43(C)
44(D)
45(B)
46(C)
47(C)
48(C)
49(D)
50(D)
51(B)
52(C)
53(D)
54(B)
55(D)
56(B)
57(D)
58(A)
59(D)
60(D)
61(D)
62(A)
63(B)
64(C)
65(A)
66(D)
67(B)
68(A)
69(D)
70(C)
71(D)
72(B)
73(A)
74(C)
75(C)
76(D)
77(D)
78(D)
79(A)
80(A)
81(D)
82(D)
83(D)
84(C)
85(A)
86(A)
87(B)
88(B)
89(C)
90(D)
91(D)
92(B)
93(B)
94(C)
95(D)
96(D)
97(B)
98(D)
99(D)
100(D)
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PUNSUP MOCK TEST FOR QUERY CALL 94636-12090
HINTS & SOLUTIONS
51.
52.
53.
54.
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PUNSUP MOCK TEST FOR QUERY CALL 94636-12090
55.
56.
57.
58.
59.
60.
The Institute of Banking Training
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PUNSUP MOCK TEST FOR QUERY CALL 94636-12090
61.
62.
63.
64.
65.
66.
The Institute of Banking Training
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PUNSUP MOCK TEST FOR QUERY CALL 94636-12090
67.
69.
70.
71.
72.
73.
76.
77.
78.
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PUNSUP MOCK TEST FOR QUERY CALL 94636-12090
79.
80.
81.
82.
83.
84.
85.
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PUNSUP MOCK TEST FOR QUERY CALL 94636-12090
86.
87.
88.
89.
Number of candidates who had none of the three = Total number of candidates - number of candidates
who had at least one of three devices.
Total number of candidates = 200.
Number of candidates who had at least one of the three = A U B U C, where A is the set of those who have a
two wheeler, B the set of those who have a credit card and C the set of those who have a mobile phone.
We know that AUBUC = A + B + C - {A n B + B n C + C n A} + A n B n C
Therefore, AUBUC = 100 + 70 + 140 - {40 + 30 + 60} + 10
Or AUBUC = 190.
As 190 candidates who attended the interview had at least one of the three gadgets, 200 - 190 = 10 candidates
had none of three.
90.
Any quadratic equation of the form ax2 + bx + c = 0 will have real and equal roots if its discriminant b2 4ac = 0.
In the given equation x2 - mx + 4 = 0, a = 1, b = -m and c = 4.
Therefore, b2 - 4ac = m2 - 4(4)(1) = m2 - 16.
The roots of the given equation are real and equal.
Therefore, m2 - 16 = 0 or m2 = 16 or m = +4 or m = -4.
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