Section A — Mathematics
30 Questions
Number System & Simplification
1. What is the HCF of 36 and 48?
A) 6
B) 8
C) 12
D) 16
Answer: C) 12
2. What is the LCM of 12, 18 and 24?
A) 36
B) 48
C) 72
D) 96
Answer: C) 72
3. What is 25% of 240?
A) 50
B) 60
C) 70
D) 80
Answer: B) 60
4. Simplify: 48 ÷ 6 × 4 + 8
A) 32
B) 36
C) 40
D) 48
Answer: C) 40
5. Which of the following is a prime number?
A) 21
B) 27
C) 31
D) 39
Answer: C) 31
Ratio & Proportion
6. The ratio of boys to girls is 3:2. If there are 30 boys, how many girls are there?
A) 15
B) 20
C) 25
D) 30
Answer: B) 20
7. Divide ₹600 in the ratio 2:3. What is the larger share?
A) ₹200
B) ₹240
C) ₹300
D) ₹360
Answer: D) ₹360
Percentage
8. A number is increased by 20%. If the original number is 500, what is the new number?
A) 550
B) 580
C) 600
D) 620
Answer: C) 600
9. A student’s marks increase from 400 to 460. What is the percentage increase?
A) 10%
B) 12%
C) 15%
D) 20%
Answer: C) 15%
Profit & Loss
10. An article is purchased for ₹800 and sold for ₹1,000. What is the profit percentage?
A) 20%
B) 25%
C) 30%
D) 15%
Answer: B) 25%
11. An article costing ₹1,000 is sold at a 10% loss. Find the selling price.
A) ₹850
B) ₹880
C) ₹900
D) ₹950
Answer: C) ₹900
Simple & Compound Interest
12. Find the simple interest on ₹5,000 at 10% per annum for 2 years.
A) ₹500
B) ₹800
C) ₹1,000
D) ₹1,200
Answer: C) ₹1,000
13. What is the amount on ₹2,000 at 10% simple interest for 3 years?
A) ₹2,400
B) ₹2,500
C) ₹2,600
D) ₹2,800
Answer: C) ₹2,600
Time & Work
14. A person can complete a work in 10 days. What fraction of the work does he complete in one day?
A) 1/5
B) 1/10
C) 1/15
D) 1/20
Answer: B) 1/10
15. A can complete a job in 12 days and B in 6 days. Working together, how many days will they take?
A) 3
B) 4
C) 6
D) 8
Answer: B) 4 days
Time, Speed & Distance
16. A train travels 300 km in 5 hours. What is its average speed?
A) 50 km/h
B) 55 km/h
C) 60 km/h
D) 75 km/h
Answer: C) 60 km/h
17. Convert 72 km/h into m/s.
A) 15 m/s
B) 18 m/s
C) 20 m/s
D) 25 m/s
Answer: C) 20 m/s
18. A car travels at 50 km/h for 4 hours. Find the distance travelled.
A) 150 km
B) 180 km
C) 200 km
D) 250 km
Answer: C) 200 km
Algebra
19. If x + 5 = 12, find x.
A) 5
B) 6
C) 7
D) 8
Answer: C) 7
20. If 2x = 18, what is x?
A) 6
B) 8
C) 9
D) 12
Answer: C) 9
Geometry
21. What is the sum of the angles of a triangle?
A) 90°
B) 180°
C) 270°
D) 360°
Answer: B) 180°
22. A right angle is equal to:
A) 45°
B) 60°
C) 90°
D) 180°
Answer: C) 90°
Mensuration
23. Find the area of a rectangle having length 12 cm and breadth 5 cm.
A) 17 cm²
B) 30 cm²
C) 50 cm²
D) 60 cm²
Answer: D) 60 cm²
24. Find the perimeter of a square with side 8 cm.
A) 16 cm
B) 24 cm
C) 32 cm
D) 64 cm
Answer: C) 32 cm
Average
25. Find the average of 10, 20, 30, 40 and 50.
A) 25
B) 30
C) 35
D) 40
Answer: B) 30
Age
26. The present age of A is 20 years and B is 10 years. What will be their age ratio after 10 years?
A) 1:1
B) 2:1
C) 3:2
D) 4:3
Answer: A) 1:1
Trigonometry
27. What is the value of sin 30°?
A) 1
B) √3/2
C) 1/2
D) 0
Answer: C) 1/2
28. What is the value of tan 45°?
A) 0
B) 1
C) √3
D) 1/√3
Answer: B) 1
Statistics
29. Find the mode of 2, 3, 3, 4, 5, 3, 6.
A) 2
B) 3
C) 4
D) 5
Answer: B) 3
Calendar & Clock
30. How many degrees does the minute hand of a clock move in 10 minutes?
A) 30°
B) 45°
C) 60°
D) 90°
Answer: C) 60°
Section B — General Intelligence & Reasoning
25 Questions
Analogy
31. Book : Read :: Food : ?
A) Cook
B) Eat
C) Buy
D) Sell
Answer: B) Eat
32. Doctor : Hospital :: Teacher : ?
A) Court
B) School
C) Bank
D) Market
Answer: B) School
Number Series
33. Find the next number: 2, 4, 8, 16, ?
A) 20
B) 24
C) 32
D) 36
Answer: C) 32
34. Find the next number: 5, 10, 15, 20, ?
A) 22
B) 25
C) 30
D) 35
Answer: B) 25
35. Find the missing number: 3, 6, 12, 24, ?
A) 36
B) 42
C) 48
D) 50
Answer: C) 48
Alphabet Series
36. Find the next letter: A, C, E, G, ?
A) H
B) I
C) J
D) K
Answer: B) I
Coding-Decoding
37. If CAT is coded as DBU, how is DOG coded?
A) EPH
B) EOG
C) FPH
D) DPH
Answer: A) EPH
Explanation: Each letter is moved one position forward.
38. If PEN = 35, then what is the value of CAT?
Using A=1, B=2, C=3…
C + A + T = 3 + 1 + 20 = 24
Answer: 24
Blood Relation
39. A is the brother of B. B is the sister of C. How is A related to C?
A) Father
B) Brother
C) Uncle
D) Son
Answer: B) Brother
40. Pointing to a woman, Rahul says, “She is the daughter of my mother’s only son.” Who is the woman to Rahul?
A) Sister
B) Daughter
C) Mother
D) Wife
Answer: B) Daughter
Direction
41. A person walks 5 km north and then 5 km east. In which direction is he from his starting point?
A) North
B) South
C) North-East
D) South-East
Answer: C) North-East
Syllogism
42. Statements:
All cats are animals.
All animals are living beings.
Conclusion:
All cats are living beings.
A) True
B) False
C) Cannot say
D) None
Answer: A) True
Odd One Out
43. Find the odd one out.
A) Apple
B) Mango
C) Potato
D) Banana
Answer: C) Potato
44. Find the odd number.
A) 9
B) 16
C) 25
D) 30
Answer: D) 30
Venn Diagram
45. Which category includes doctors, engineers and teachers?
A) Professionals
B) Animals
C) Vehicles
D) Sports
Answer: A) Professionals
Ranking
46. In a class of 40 students, Ravi ranks 10th from the top. What is his rank from the bottom?
A) 29th
B) 30th
C) 31st
D) 32nd
Answer: C) 31st
Formula:
Bottom rank = Total − Top rank + 1
= 40 − 10 + 1 = 31
Mathematical Operations
47. If + means × and × means −, find: 5 + 3 × 2
Replace the symbols:
5 × 3 − 2 = 15 − 2 = 13
Answer: 13
Statement & Conclusion
48. Statement: All railway employees must follow safety rules.
Conclusion: Railway employees should ignore safety rules.
A) Follows
B) Does not follow
C) Both
D) None
Answer: B) Does not follow
Missing Number
49. 2 + 3 = 10, 3 + 4 = 21, 4 + 5 = 36. Then 5 + 6 = ?
Pattern:
2 × 5 = 10
3 × 7 = 21
4 × 9 = 36
Therefore:
5 × 11 = 55
Answer: 55
Data Sufficiency
50. What is the age of A?
Statement I: A is 5 years older than B.
Statement II: B is 20 years old.
A) I alone sufficient
B) II alone sufficient
C) Both together sufficient
D) Neither
Answer: C) Both together sufficient
Seating Arrangement
51. Five people A, B, C, D and E sit in a row. A sits to the left of B and C sits to the right of B. Who is immediately between A and C?
A) A
B) B
C) C
D) D
Answer: B) B
Mirror Image
52. Which type of image is produced by a plane mirror?
A) Real and inverted
B) Virtual and erect
C) Real and erect
D) Enlarged real
Answer: B) Virtual and erect
Clock Reasoning
53. How many degrees are there in a full circle?
A) 90°
B) 180°
C) 270°
D) 360°
Answer: D) 360°
Alphabet Position
54. What is the position of M in the English alphabet?
A) 11
B) 12
C) 13
D) 14
Answer: C) 13
Logical Sequence
55. Arrange these in logical order:
- Seed
- Flower
- Plant
- Fruit
A) 1,3,2,4
B) 3,1,2,4
C) 1,2,3,4
D) 4,3,2,1
Answer: A) 1,3,2,4
Section C — General Awareness
15 Questions
Indian History
56. Who was the first President of India?
A) Jawaharlal Nehru
B) Dr. Rajendra Prasad
C) Sardar Patel
D) Dr. S. Radhakrishnan
Answer: B) Dr. Rajendra Prasad
57. The Revolt of 1857 started at:
A) Delhi
B) Kanpur
C) Meerut
D) Lucknow
Answer: C) Meerut
58. Who founded the Maurya Empire?
A) Ashoka
B) Chandragupta Maurya
C) Bindusara
D) Harsha
Answer: B) Chandragupta Maurya
Indian Polity
59. The Constitution of India came into effect on:
A) 15 August 1947
B) 26 November 1949
C) 26 January 1950
D) 2 October 1950
Answer: C) 26 January 1950
60. Fundamental Rights are mentioned in which part of the Constitution?
A) Part I
B) Part II
C) Part III
D) Part IV
Answer: C) Part III
61. Who is the constitutional head of India?
A) Prime Minister
B) President
C) Chief Justice
D) Home Minister
Answer: B) President
Geography
62. Which is the longest river in India?
A) Yamuna
B) Ganga
C) Godavari
D) Narmada
Answer: B) Ganga
63. Which is the largest Indian state by area?
A) Madhya Pradesh
B) Maharashtra
C) Rajasthan
D) Uttar Pradesh
Answer: C) Rajasthan
Economy
64. RBI stands for:
A) Reserve Bank of India
B) Rural Bank of India
C) Regional Bank of India
D) Revenue Bank of India
Answer: A) Reserve Bank of India
65. GDP stands for:
A) Gross Domestic Product
B) General Domestic Product
C) Gross Development Plan
D) General Development Product
Answer: A) Gross Domestic Product
Sports
66. How many players are there in a cricket team?
A) 9
B) 10
C) 11
D) 12
Answer: C) 11
Science & Technology
67. ISRO stands for:
A) Indian Space Research Organisation
B) Indian Scientific Research Office
C) International Space Research Organisation
D) Indian Satellite Research Organisation
Answer: A) Indian Space Research Organisation
Important Days
68. Republic Day of India is celebrated on:
A) 15 August
B) 26 January
C) 2 October
D) 14 November
Answer: B) 26 January
69. National Science Day in India is observed on:
A) 28 February
B) 5 June
C) 15 August
D) 11 May
Answer: A) 28 February
Indian Railways
70. Indian Railways operates under which ministry?
A) Ministry of Transport
B) Ministry of Road Transport
C) Ministry of Railways
D) Ministry of Heavy Industries
Answer: C) Ministry of Railways
Section D — General Science
30 Questions
Physics
71. What is the SI unit of force?
A) Joule
B) Newton
C) Watt
D) Pascal
Answer: B) Newton
72. What is the SI unit of power?
A) Joule
B) Newton
C) Watt
D) Volt
Answer: C) Watt
73. The speed of light in vacuum is approximately:
A) 3 × 10⁶ m/s
B) 3 × 10⁷ m/s
C) 3 × 10⁸ m/s
D) 3 × 10⁹ m/s
Answer: C) 3 × 10⁸ m/s
74. Which instrument is used to measure electric current?
A) Voltmeter
B) Ammeter
C) Barometer
D) Thermometer
Answer: B) Ammeter
75. Which device converts electrical energy into mechanical energy?
A) Generator
B) Motor
C) Transformer
D) Battery
Answer: B) Motor
76. What is the SI unit of electrical resistance?
A) Volt
B) Ampere
C) Ohm
D) Watt
Answer: C) Ohm
77. Which law states V = IR?
A) Newton’s law
B) Ohm’s law
C) Faraday’s law
D) Coulomb’s law
Answer: B) Ohm’s law
78. Which lens is used to correct myopia?
A) Convex lens
B) Concave lens
C) Cylindrical lens only
D) Plane lens
Answer: B) Concave lens
79. Sound cannot travel through:
A) Air
B) Water
C) Steel
D) Vacuum
Answer: D) Vacuum
80. Which form of energy is stored in a stretched rubber band?
A) Chemical energy
B) Elastic potential energy
C) Nuclear energy
D) Electrical energy
Answer: B) Elastic potential energy
Chemistry
81. What is the chemical formula of water?
A) CO₂
B) H₂O
C) O₂
D) H₂
Answer: B) H₂O
82. What is the pH of a neutral solution at about room temperature?
A) 0
B) 5
C) 7
D) 14
Answer: C) 7
83. Which gas is essential for human respiration?
A) Nitrogen
B) Oxygen
C) Carbon dioxide
D) Hydrogen
Answer: B) Oxygen
84. What is the chemical symbol of sodium?
A) So
B) S
C) Na
D) N
Answer: C) Na
85. Which acid is present in vinegar?
A) Hydrochloric acid
B) Sulphuric acid
C) Acetic acid
D) Nitric acid
Answer: C) Acetic acid
86. Rusting of iron requires oxygen and:
A) Nitrogen
B) Water/moisture
C) Hydrogen
D) Carbon dioxide only
Answer: B) Water/moisture
87. Which of the following is a noble gas?
A) Oxygen
B) Nitrogen
C) Helium
D) Hydrogen
Answer: C) Helium
88. The smallest unit of an element that retains its chemical properties is:
A) Molecule
B) Atom
C) Cell
D) Ion
Answer: B) Atom
89. Which gas is released during photosynthesis?
A) Oxygen
B) Nitrogen
C) Hydrogen
D) Methane
Answer: A) Oxygen
90. Which metal is liquid at room temperature?
A) Iron
B) Copper
C) Mercury
D) Aluminium
Answer: C) Mercury
Biology
91. What is the basic structural unit of life?
A) Tissue
B) Organ
C) Cell
D) Nucleus
Answer: C) Cell
92. Which organ pumps blood throughout the human body?
A) Liver
B) Kidney
C) Heart
D) Lungs
Answer: C) Heart
93. Which organ is primarily responsible for filtering blood and producing urine?
A) Heart
B) Kidney
C) Stomach
D) Lungs
Answer: B) Kidney
94. Which vitamin is mainly produced in the skin in response to sunlight?
A) Vitamin A
B) Vitamin B12
C) Vitamin C
D) Vitamin D
Answer: D) Vitamin D
95. Deficiency of Vitamin C causes:
A) Rickets
B) Scurvy
C) Night blindness
D) Beriberi
Answer: B) Scurvy
96. Which part of the plant performs photosynthesis mainly?
A) Root
B) Stem
C) Leaf
D) Flower
Answer: C) Leaf
97. Which gas do plants primarily absorb during photosynthesis?
A) Oxygen
B) Nitrogen
C) Carbon dioxide
D) Hydrogen
Answer: C) Carbon dioxide
98. Which is the largest organ of the human body?
A) Liver
B) Brain
C) Skin
D) Heart
Answer: C) Skin
99. Which blood cells help fight infections?
A) Red blood cells
B) White blood cells
C) Platelets
D) Plasma only
Answer: B) White blood cells
100. Which molecule carries genetic information in most living organisms?
A) ATP
B) DNA
C) Glucose
D) Protein
Answer: B) DNA
CBT-1 Question Type Coverage
These 100 questions cover the major patterns you should practice:
| Subject | Major Question Types |
|---|---|
| Mathematics | Number System, HCF/LCM, Simplification, Percentage, Ratio, Profit/Loss, SI/CI, Time & Work, Speed/Distance, Algebra, Geometry, Mensuration, Trigonometry, Average, Age, Statistics, Clock |
| Reasoning | Analogy, Series, Coding-Decoding, Blood Relation, Direction, Syllogism, Classification, Venn Diagram, Ranking, Mathematical Operations, Statement/Conclusion, Data Sufficiency, Seating, Mirror Image |
| General Awareness | History, Geography, Polity, Economy, Sports, Science & Technology, Important Days, Indian Railways, Static GK |
| General Science | Physics, Chemistry, Biology, Human Body, Electricity, Light, Sound, Motion, Chemical Reactions, Acids/Bases, Cell, Vitamins, Diseases, Plants, Genetics |
How to Use This for RRB JE
Don’t just memorize these 100 answers. For the actual CBT-1 exam, practice different variations of the same question type.
For example:
Percentage → basic percentage → increase/decrease → successive percentage → percentage with profit/loss.
Time & Work → individual work → combined work → efficiency → pipes & cisterns.
Reasoning → simple coding → reverse coding → number coding → mixed coding.
Science → definition → unit → formula → application → conceptual question.
General Awareness → static GK + current affairs.
Recommended target
Before your CBT-1 examination, aim to solve at least:
Maths: 1,000+ questions
Reasoning: 800+ questions
Science: 1,000+ questions
GK/Current Affairs: 1,000+ questions
That gives you substantially more practice than simply reading a syllabus.