LU BCA Entrance Previous Year Question Paper Pattern – Model Paper Set 4 (2027) with Answers
LU BCA Entrance 2027 Model Paper – Set 4 (Lucknow University UGET) with answers and explanations. 100 MCQs – LU entrance syllabus ke hisaab se. Har sawaal ke neeche “Answer dekho” par click karke sahi answer aur hal dekho.
📌 Note: Ye LUUPDATE expert team ka banaya model paper (practice set) hai, jo LU entrance ke syllabus aur pattern par based hai. Official LU previous year paper nahi hai. Detailed syllabus: LU BCA Entrance 2027 syllabus & pattern · Syllabus PDF
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Join Safalta Batch – ₹489 → WhatsApp par poochhoSection A — Computer Awareness
Q1. Which of the following are used to combine different media formats and deliver them as multimedia content?
- (A) Device drivers
- (B) Multimedia authoring tools
- (C) Scanners
- (D) Media Players
Answer dekho
✔ Answer: (B) Multimedia authoring tools
Q2. Which software is used to navigate and search World Wide Web sites?
- (A) Database
- (B) Firewall
- (C) Cookie
- (D) Browser
Answer dekho
✔ Answer: (D) Browser
Q3. In which generation of computers were FORTRAN and COBOL languages first used?
- (A) II Generation
- (B) IV Generation
- (C) I Generation
- (D) V Generation
Answer dekho
✔ Answer: (A) II Generation
Q4. The small pictorial representation of a program or file on the screen is called an
- (A) Tool
- (B) Icons
- (C) Map
- (D) Logos
Answer dekho
✔ Answer: (B) Icons
Q5. How will MS Word respond in case a word is immediately repeated?
- (A) A green wavy line under the repeated word
- (B) A blue wavy line under the repeated word
- (C) None of these
- (D) A red wavy line under the repeated word
Answer dekho
✔ Answer: (D) A red wavy line under the repeated word
Q6. What is the keyboard shortcut in MS Excel to create a chart from the selected cell range on a new sheet?
- (A) F8
- (B) F11
- (C) F2
- (D) F4
Answer dekho
✔ Answer: (B) F11
Q7. Servers are computers that provide resources to other computers connected to a
- (A) Super Computer
- (B) Mainframe
- (C) Client
- (D) Network
Answer dekho
✔ Answer: (D) Network
Q8. Wrapping data and functions into a single unit is called
- (A) Polymorphism
- (B) Encapsulation
- (C) Overloading
- (D) Inheritance
Answer dekho
✔ Answer: (B) Encapsulation
Encapsulation bundles data with methods.
Q9. A flowchart symbol for decision is
- (A) Oval
- (B) Parallelogram
- (C) Diamond
- (D) Rectangle
Answer dekho
✔ Answer: (C) Diamond
A diamond represents a decision.
Q10. A step-by-step procedure to solve a problem is called
- (A) Algorithm
- (B) Program
- (C) Pseudocode only
- (D) Flowchart
Answer dekho
✔ Answer: (A) Algorithm
An algorithm is a finite set of steps.
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- (A) Array
- (B) Tree
- (C) Queue
- (D) Stack
Answer dekho
✔ Answer: (D) Stack
Stack = Last In First Out.
Q12. Which data structure works on FIFO?
- (A) Graph
- (B) Stack
- (C) Queue
- (D) Tree
Answer dekho
✔ Answer: (C) Queue
Queue = First In First Out.
Q13. The time complexity of binary search is
- (A) O(n)
- (B) O(1)
- (C) O(n²)
- (D) O(log n)
Answer dekho
✔ Answer: (D) O(log n)
Binary search halves the range each step.
Q14. Binary search requires the list to be
- (A) Unsorted
- (B) Linked
- (C) Sorted
- (D) Circular
Answer dekho
✔ Answer: (C) Sorted
Binary search works only on sorted data.
Q15. Which sorting algorithm is generally fastest on average?
- (A) Selection sort
- (B) Quick sort
- (C) Bubble sort
- (D) Insertion sort
Answer dekho
✔ Answer: (B) Quick sort
Quick sort averages O(n log n).
Q16. A program in execution is called a
- (A) Process
- (B) Thread only
- (C) File
- (D) Kernel
Answer dekho
✔ Answer: (A) Process
A process is a program in execution.
Q17. Virtual memory uses
- (A) Part of the hard disk as RAM
- (B) ROM as RAM
- (C) Cache as RAM
- (D) Registers as RAM
Answer dekho
✔ Answer: (A) Part of the hard disk as RAM
Virtual memory extends RAM onto disk.
Q18. Deadlock occurs when
- (A) Memory is full
- (B) Disk crashes
- (C) Processes wait for each other's resources indefinitely
- (D) CPU overheats
Answer dekho
✔ Answer: (C) Processes wait for each other's resources indefinitely
Each process holds a resource needed by another.
Q19. The core of an operating system is called the
- (A) Kernel
- (B) Shell
- (C) Driver
- (D) BIOS
Answer dekho
✔ Answer: (A) Kernel
The kernel manages hardware and resources.
Q20. Which of these is a mobile operating system?
- (A) Excel
- (B) Oracle
- (C) Android
- (D) Python
Answer dekho
✔ Answer: (C) Android
Android is a mobile OS by Google.
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🚀 Join LU BCA Safalta Batch – ₹489Q21. Which company developed Android?
- (A) Apple
- (B) Google
- (C) Microsoft
- (D) Samsung
Answer dekho
✔ Answer: (B) Google
Android is developed by Google (Android Inc. acquired 2005).
Q22. Which of these is an open-source software?
- (A) LibreOffice
- (B) MS Office
- (C) Windows 11
- (D) Adobe Photoshop
Answer dekho
✔ Answer: (A) LibreOffice
LibreOffice is free and open-source.
Q23. Cloud computing services like Gmail are an example of
- (A) SaaS
- (B) IaaS
- (C) PaaS
- (D) DaaS only
Answer dekho
✔ Answer: (A) SaaS
Software delivered over the internet = SaaS.
Q24. AI stands for
- (A) Automatic Intelligence
- (B) Advanced Interface
- (C) Artificial Intelligence
- (D) Analog Input
Answer dekho
✔ Answer: (C) Artificial Intelligence
AI = Artificial Intelligence.
Q25. IoT stands for
- (A) Internal Operating Tool
- (B) Internet of Things
- (C) Internet over Telephone
- (D) Input of Technology
Answer dekho
✔ Answer: (B) Internet of Things
IoT = Internet of Things.
Q26. A 'bug' in software means
- (A) An insect
- (B) A virus
- (C) A new feature
- (D) An error or fault
Answer dekho
✔ Answer: (D) An error or fault
A bug is a defect in a program.
Q27. Removing errors from a program is called
- (A) Debugging
- (B) Compiling
- (C) Executing
- (D) Linking
Answer dekho
✔ Answer: (A) Debugging
Debugging finds and fixes errors.
Q28. Which of these is a web browser?
- (A) Python
- (B) Windows
- (C) Oracle
- (D) Google Chrome
Answer dekho
✔ Answer: (D) Google Chrome
Chrome is a browser.
Q29. www stands for
- (A) Wide Web World
- (B) Web World Wide
- (C) World Web Window
- (D) World Wide Web
Answer dekho
✔ Answer: (D) World Wide Web
WWW = World Wide Web.
Q30. Who invented the World Wide Web?
- (A) Vint Cerf
- (B) Tim Berners-Lee
- (C) Bill Gates
- (D) Steve Jobs
Answer dekho
✔ Answer: (B) Tim Berners-Lee
Tim Berners-Lee at CERN, 1989.
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Join Safalta Batch – ₹489 → WhatsApp par poochhoSection B — Mathematics (10+2)
Q31. If f(x) = 3x^4, then f′(1) equals
- (A) 12
- (B) 13
- (C) 15
- (D) 3
Answer dekho
✔ Answer: (A) 12
f′(x) = 12x^3; at x = 1: 12×1 = 12.
Q32. The 10th term of the AP 11, 16, 21, … is
- (A) 61
- (B) 56
- (C) 50
- (D) 51
Answer dekho
✔ Answer: (B) 56
aₙ = a + (n−1)d = 11 + 9×5 = 56.
Q33. In how many ways can the letters of the word "PLANT" be arranged?
- (A) 60
- (B) 125
- (C) 121
- (D) 120
Answer dekho
✔ Answer: (D) 120
5! divided by factorials of repeated letters = 120.
Q34. The binary equivalent of the decimal number 50 is
- (A) 110010
- (B) 110100
- (C) 110001
- (D) 110011
Answer dekho
✔ Answer: (A) 110010
50 in base 2 = 110010.
Q35. The product of the roots of x² + 2x – 15 = 0 is
- (A) -15
- (B) -2
- (C) -13
- (D) 15
Answer dekho
✔ Answer: (A) -15
Product of roots = c/a = -15.
Q36. The value of log base 3 of 27 is
- (A) 2
- (B) 3
- (C) 4
- (D) 9
Answer dekho
✔ Answer: (B) 3
3^3 = 27, so log_3(27) = 3.
Q37. The sum of the roots of x² – 5x – 14 = 0 is
- (A) 6
- (B) 5
- (C) -5
- (D) -14
Answer dekho
✔ Answer: (B) 5
For x² + bx + c = 0, sum of roots = −b = 5.
Q38. The value of cos 60° is
- (A) 1/2
- (B) 1
- (C) √3/2
- (D) 0
Answer dekho
✔ Answer: (A) 1/2
Standard value: cos 60° = 1/2.
Q39. The modulus of the complex number 3 + 4i is
- (A) 12
- (B) 1
- (C) 7
- (D) 5
Answer dekho
✔ Answer: (D) 5
|z| = √(3² + 4²) = 5.
Q40. The value of ∫₀^3 3x^2 dx is
- (A) 27
- (B) 28
- (C) 27/2
- (D) 54
Answer dekho
✔ Answer: (A) 27
∫3x^2 dx = x^3; from 0 to 3 gives 3^3 = 27.
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🚀 Join LU BCA Safalta Batch – ₹489Q41. The value of lim (x→2) (x² − 4) / (x − 2) is
- (A) 5
- (B) 4
- (C) 0
- (D) 2
Answer dekho
✔ Answer: (B) 4
(x² − 4)/(x − 2) = x + 2 → 4.
Q42. The value of ⁿCᵣ for n = 7, r = 2 is
- (A) 42
- (B) 28
- (C) 35
- (D) 21
Answer dekho
✔ Answer: (D) 21
7C2 = 7!/(2!·5!) = 21.
Q43. The sum of the first 20 natural numbers is
- (A) 420
- (B) 190
- (C) 200
- (D) 210
Answer dekho
✔ Answer: (D) 210
Sum = n(n+1)/2 = 20×21/2 = 210.
Q44. The value of the determinant |-5 0; 4 1| is
- (A) -2
- (B) -4
- (C) -3
- (D) -5
Answer dekho
✔ Answer: (D) -5
|a b; c d| = ad − bc = -5×1 − 0×4 = -5.
Q45. The distance between (-2, 0) and (1, 4) is
- (A) 7
- (B) 5
- (C) 1
- (D) 6
Answer dekho
✔ Answer: (B) 5
√(3² + 4²) = 5.
Section C — Logical Reasoning
Q46. Which term comes next in the sequence? B2, F8, J32, N128, ?
- (A) R256
- (B) R1024
- (C) R1204
- (D) R512
Answer dekho
✔ Answer: (D) R512
Letters +4 (B,F,J,N,R); numbers ×4 (2,8,32,128,512) → R512.
Q47. What is the angle between the hour and minute hands of a clock at 4:20?
- (A) 5°
- (B) 10°
- (C) 20°
- (D) 120°
Answer dekho
✔ Answer: (B) 10°
Angle = |30H − 5.5M| = |120 − 110| = 10°.
Q48. Ravi walks 6 km towards North, then turns right and walks 8 km. How far is he from the starting point?
- (A) 2 km
- (B) 14 km
- (C) 10 km
- (D) 12 km
Answer dekho
✔ Answer: (C) 10 km
Distance = √(6²+8²) = √100 = 10 km.
Q49. P is the father of Q. Q is the sister of R. R is the son of S. How is S related to P?
- (A) Mother
- (B) Wife
- (C) Daughter
- (D) Sister
Answer dekho
✔ Answer: (B) Wife
P and S are parents of Q and R; so S is P's wife.
Q50. Find the odd one out: 49, 72, 45, 18
- (A) 18
- (B) 49
- (C) 72
- (D) 45
Answer dekho
✔ Answer: (B) 49
All others are multiples of 9; 49 is not.
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🚀 Join LU BCA Safalta Batch – ₹489Q51. Find the next number in the series: 20, 26, 32, 38, 44, ?
- (A) 48
- (B) 51
- (C) 50
- (D) 53
Answer dekho
✔ Answer: (C) 50
Each term increases by 6.
Q52. If each letter of a word is shifted 2 place(s) forward in the alphabet, how will "SMILE" be coded?
- (A) UOKNG
- (B) GNKOU
- (C) QKGJC
- (D) VPLOH
Answer dekho
✔ Answer: (A) UOKNG
Shift every letter of SMILE 2 place(s) forward: UOKNG.
Q53. In a row of students, Rahul is 12th from the left and 7th from the right. How many students are in the row?
- (A) 19
- (B) 20
- (C) 18
- (D) 17
Answer dekho
✔ Answer: (C) 18
Total = 12 + 7 − 1 = 18.
Q54. 12 : 144 :: 7 : ?
- (A) 49
- (B) 343
- (C) 64
- (D) 50
Answer dekho
✔ Answer: (A) 49
Second term is the square of the first.
Q55. Complete the letter series: I, N, S, X, C, ?
- (A) I
- (B) H
- (C) G
- (D) J
Answer dekho
✔ Answer: (B) H
Each letter moves 5 places forward: I, N, S, X, C, H.
Q56. Statements: All pens are books. All books are tables. Conclusions: I. All pens are tables. II. Some tables are books.
- (A) Only II follows
- (B) Both I and II follow
- (C) Only I follows
- (D) Neither follows
Answer dekho
✔ Answer: (B) Both I and II follow
Pens ⊂ books ⊂ tables, so I follows; and some tables are books, so II follows.
Q57. What is the angle between the hour and minute hands of a clock at 5:20?
- (A) 50°
- (B) 25°
- (C) 150°
- (D) 40°
Answer dekho
✔ Answer: (D) 40°
Angle = |30H − 5.5M| = |150 − 110| = 40°.
Q58. Ravi walks 3 km towards North, then turns right and walks 4 km. How far is he from the starting point?
- (A) 5 km
- (B) 6 km
- (C) 1 km
- (D) 7 km
Answer dekho
✔ Answer: (A) 5 km
Distance = √(3²+4²) = √25 = 5 km.
Q59. Pointing to a photo, Rohan said, "She is the daughter of my grandfather's only son." How is she related to Rohan?
- (A) Cousin
- (B) Mother
- (C) Aunt
- (D) Sister
Answer dekho
✔ Answer: (D) Sister
Grandfather's only son is Rohan's father; his daughter is Rohan's sister.
Q60. Find the odd one out: 83, 98, 49, 28
- (A) 98
- (B) 28
- (C) 49
- (D) 83
Answer dekho
✔ Answer: (D) 83
All others are multiples of 7; 83 is not.
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Join Safalta Batch – ₹489 → WhatsApp par poochhoSection D — General English
Q61. Choose the synonym of INTREPID.
- (A) Fearless
- (B) Extrovert
- (C) Rash
- (D) Hesitant
Answer dekho
✔ Answer: (A) Fearless
Q62. Take this medicine regularly and you will get rid ________ this disease.
- (A) Over
- (B) From
- (C) Of
- (D) At
Answer dekho
✔ Answer: (C) Of
Q63. Conviction means
- (A) Ignorance
- (B) Persuasion
- (C) Strong belief
- (D) Disbelief
Answer dekho
✔ Answer: (C) Strong belief
Q64. Choose the word that fits both blanks: (I) While trying to open the door, the ____ broke. (II) It is not difficult to ____ tricky situations.
- (A) Handle
- (B) Knob
- (C) Bracket
- (D) Overcome
Answer dekho
✔ Answer: (A) Handle
Q65. Choose the antonym of AMENABLE.
- (A) Acquiescent
- (B) Inattentive
- (C) Distrustful
- (D) Unwilling
Answer dekho
✔ Answer: (D) Unwilling
Q66. Fill in the blank: His bungalow went through a make______.
- (A) Over
- (B) Out
- (C) For
- (D) Up
Answer dekho
✔ Answer: (A) Over
Q67. Improve the sentence (if needed): "To identify potential leaders, look for people who are constantly suggesting new and better ways of doing things."
- (A) Look forward people
- (B) People look at them
- (C) Search at people
- (D) No correction required
Answer dekho
✔ Answer: (D) No correction required
Q68. Choose the antonym of APPROPRIATE.
- (A) Incomparable
- (B) Disparate
- (C) Unsuitable
- (D) Dissimilar
Answer dekho
✔ Answer: (C) Unsuitable
Q69. Choose the antonym of VERBOSE.
- (A) Lengthy
- (B) Concise
- (C) Wordy
- (D) Talkative
Answer dekho
✔ Answer: (B) Concise
Verbose (wordy) is opposite to concise.
Q70. Choose the synonym of AUTHENTIC.
- (A) Fake
- (B) False
- (C) Copied
- (D) Genuine
Answer dekho
✔ Answer: (D) Genuine
Authentic = genuine.
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🚀 Join LU BCA Safalta Batch – ₹489Section E — General Knowledge
Q71. Which ministry releases the Economic Survey of India?
- (A) RBI
- (B) NITI Aayog
- (C) Ministry of Commerce
- (D) Ministry of Finance
Answer dekho
✔ Answer: (D) Ministry of Finance
The Economic Survey is prepared by the Finance Ministry's Economic Division.
Q72. The 'Dhyan Chand Khel Ratna' award is given for excellence in
- (A) Science
- (B) Literature
- (C) Sports
- (D) Cinema
Answer dekho
✔ Answer: (C) Sports
India's highest sporting honour.
Q73. Which is the national aquatic animal of India?
- (A) Crocodile
- (B) Whale
- (C) Dolphin (Ganges river dolphin)
- (D) Turtle
Answer dekho
✔ Answer: (C) Dolphin (Ganges river dolphin)
The Ganges river dolphin was declared national aquatic animal in 2009.
Q74. Bihu is a festival of
- (A) Gujarat
- (B) Kerala
- (C) Assam
- (D) Punjab
Answer dekho
✔ Answer: (C) Assam
Bihu is celebrated in Assam.
Q75. The Sun Temple at Konark is in
- (A) Gujarat
- (B) Andhra Pradesh
- (C) Tamil Nadu
- (D) Odisha
Answer dekho
✔ Answer: (D) Odisha
Konark Sun Temple is in Odisha.
Q76. Who was the first Prime Minister of India?
- (A) Sardar Patel
- (B) Rajendra Prasad
- (C) Jawaharlal Nehru
- (D) Lal Bahadur Shastri
Answer dekho
✔ Answer: (C) Jawaharlal Nehru
Nehru served as PM from 1947 to 1964.
Q77. The 'Quit India Movement' was launched in
- (A) 1945
- (B) 1942
- (C) 1930
- (D) 1920
Answer dekho
✔ Answer: (B) 1942
Launched on 8 August 1942.
Q78. Which is the largest ocean?
- (A) Indian
- (B) Pacific
- (C) Arctic
- (D) Atlantic
Answer dekho
✔ Answer: (B) Pacific
The Pacific is the largest ocean.
Q79. Who founded the Tata Group?
- (A) Ratan Tata
- (B) Dorabji Tata
- (C) J.R.D. Tata
- (D) Jamsetji Tata
Answer dekho
✔ Answer: (D) Jamsetji Tata
Jamsetji Tata founded the group in 1868.
Q80. The headquarters of SEBI is in
- (A) New Delhi
- (B) Mumbai
- (C) Kolkata
- (D) Chennai
Answer dekho
✔ Answer: (B) Mumbai
SEBI Bhavan is in Mumbai (BKC).
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🚀 Join LU BCA Safalta Batch – ₹489Section F — Current Affairs
Q81. At the All England Open Badminton 2026, Lakshya Sen finished as
- (A) Quarter-finalist
- (B) Semi-finalist
- (C) Winner
- (D) Runner-up
Answer dekho
✔ Answer: (D) Runner-up
Lakshya Sen was the men's singles runner-up.
Q82. The 2027 World Para Athletics Championships will be held in
- (A) New Delhi
- (B) Dubai
- (C) Paris
- (D) Tashkent
Answer dekho
✔ Answer: (D) Tashkent
Tashkent, Uzbekistan, will host the 2027 edition.
Q83. MGNREGA has been replaced by the VB-G RAM G Act, which guarantees how many days of wage employment?
- (A) 100
- (B) 120
- (C) 125
- (D) 150
Answer dekho
✔ Answer: (C) 125
The new Act guarantees 125 days, effective 1 July 2026.
Q84. Who took over as Chief of Defence Staff (CDS) in May 2026?
- (A) Gen. Upendra Dwivedi
- (B) Gen. Anil Chauhan
- (C) Gen. Manoj Pande
- (D) Gen. N.S. Raja Subramani
Answer dekho
✔ Answer: (D) Gen. N.S. Raja Subramani
Gen. N.S. Raja Subramani became CDS in May 2026.
Q85. Who became Chief of the Naval Staff in May 2026?
- (A) Adm. Krishna Swaminathan
- (B) Adm. Dinesh K. Tripathi
- (C) Adm. R. Hari Kumar
- (D) Adm. Karambir Singh
Answer dekho
✔ Answer: (A) Adm. Krishna Swaminathan
Adm. Krishna Swaminathan took over in May 2026.
Q86. Who won the women's singles title at Indian Wells 2026?
- (A) Iga Swiatek
- (B) Aryna Sabalenka
- (C) Mirra Andreeva
- (D) Coco Gauff
Answer dekho
✔ Answer: (B) Aryna Sabalenka
Aryna Sabalenka won Indian Wells 2026.
Q87. Which Article of the Constitution provides for the Finance Commission?
- (A) Article 112
- (B) Article 356
- (C) Article 280
- (D) Article 370
Answer dekho
✔ Answer: (C) Article 280
Article 280 provides for the Finance Commission.
Q88. The 'Green Revolution' in India is mainly associated with
- (A) Pulses
- (B) Rice and wheat
- (C) Cotton
- (D) Tea
Answer dekho
✔ Answer: (B) Rice and wheat
High-yielding wheat and rice varieties in the 1960s.
Q89. MSME stands for
- (A) Medium and Small Market Enterprises
- (B) Major Small and Medium Enterprises
- (C) Micro Scale Manufacturing Enterprises
- (D) Micro, Small and Medium Enterprises
Answer dekho
✔ Answer: (D) Micro, Small and Medium Enterprises
MSME = Micro, Small and Medium Enterprises.
Q90. The world's largest democracy is
- (A) India
- (B) Indonesia
- (C) USA
- (D) Brazil
Answer dekho
✔ Answer: (A) India
India has the largest electorate in the world.
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Join Safalta Batch – ₹489 → WhatsApp par poochhoSection G — Numerical Ability
Q91. The speed of a boat in still water is 12 km/h and the speed of the stream is 2 km/h. Find its downstream speed.
- (A) 16 km/h
- (B) 14 km/h
- (C) 12 km/h
- (D) 10 km/h
Answer dekho
✔ Answer: (B) 14 km/h
Downstream speed = 12+2 = 14 km/h.
Q92. A father is 3 times as old as his son. If the son is 8 years old now, what will be the father's age after 4 years?
- (A) 28 years
- (B) 32 years
- (C) 24 years
- (D) 36 years
Answer dekho
✔ Answer: (A) 28 years
Father now = 3×8 = 24; after 4 years = 28 years.
Q93. A car covers 240 km at a speed of 30 km/h. How much time does it take?
- (A) 8 hours
- (B) 7 hours
- (C) 9 hours
- (D) 10 hours
Answer dekho
✔ Answer: (A) 8 hours
Time = distance/speed = 240/30 = 8 hours.
Q94. A trader buys a watch for ₹800 and sells it for ₹680. Find his loss per cent.
- (A) 15%
- (B) 20%
- (C) 17.6%
- (D) 13%
Answer dekho
✔ Answer: (A) 15%
Loss = 800−680 = ₹120; Loss% = 120/800×100 = 15%.
Q95. ₹840 is divided between A and B in the ratio 3:4. Find A's share.
- (A) 327
- (B) 402
- (C) 480
- (D) 360
Answer dekho
✔ Answer: (D) 360
A's share = 3/(3+4) × 840 = ₹360.
Q96. An article bought for ₹600 is sold at a profit of 25%. Find the selling price.
- (A) 750
- (B) 810
- (C) 625
- (D) 450
Answer dekho
✔ Answer: (A) 750
SP = CP×(100+P%)/100 = 600×125/100 = ₹750.
Q97. Find the area of a circle of radius 35 cm (take π = 22/7).
- (A) 3850 cm²
- (B) 220 cm²
- (C) 1925 cm²
- (D) 3885 cm²
Answer dekho
✔ Answer: (A) 3850 cm²
Area = πr² = 22/7×35×35 = 3850 cm².
Q98. A train 200 m long runs at 90 km/h. How long will it take to cross a pole?
- (A) 5 s
- (B) 16 s
- (C) 8 s
- (D) 13 s
Answer dekho
✔ Answer: (C) 8 s
90 km/h = 90×5/18 = 25 m/s; time = 200/25 = 8 s.
Q99. The marked price of a jacket is ₹1000. Two successive discounts of 20% and 10% are given. Find the selling price.
- (A) 700
- (B) 720
- (C) 680
- (D) 770
Answer dekho
✔ Answer: (B) 720
SP = 1000×0.8×0.9 = ₹720. (Successive discounts are not added directly.)
Q100. Find the compound interest on ₹4000 for 2 years at 20% per annum, compounded annually.
- (A) 1640
- (B) 1840
- (C) 1600
- (D) 1760
Answer dekho
✔ Answer: (D) 1760
Amount = 4000×(1+20/100)² = ₹5760; CI = 5760−4000 = ₹1760. (SI would be ₹1600.)
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