Bank Exam Practice Material Series – Page 15
Probability Practice Set with Answers & Shortcut Tricks
Learn Probability shortcut tricks, dice and coin concepts, card probability methods, and fast aptitude solving techniques for Bank Exams, SSC, Railways, Insurance, and Competitive Exams.
Importance of Probability in Bank Exams
Probability is one of the most important mathematical aptitude topics in:
- Bank Exams
- SSC
- Railway Exams
- Insurance Exams
This section tests:
- Logical reasoning
- Analytical thinking
- Mathematical concepts
- Fast calculations
🎯 Important Probability Concepts
Questions are mainly based on:
- Basic probability
- Dice problems
- Coin toss problems
- Card probability
- Event outcomes
- Favorable cases
Probability Formula
Complement Formula
Shortcut Tricks
| Concept | Shortcut |
|---|---|
| Probability range | Between 0 and 1 |
| Certain event | Probability = 1 |
| Impossible event | Probability = 0 |
| Dice outcomes | Total = 6 |
| Coin toss | Total = 2 |
Practice Questions
Q1. Find probability of getting Head in one coin toss.
Solution:
Favorable outcomes = 1
Total outcomes = 2
2✅ Answer = 1/2
Q2. Find probability of getting number 4 on a dice.
Solution:
Favorable outcomes = 1
Total outcomes = 6
✅ Answer = 1/6
Q3. Find probability of getting even number on a dice.
Solution:
Even numbers = 2, 4, 6
Favorable outcomes = 3
Total outcomes = 6
✅ Answer = 1/2
Q4. A card is selected from 52 cards. Find probability of getting Ace.
Solution:
Total Aces = 4
3✅ Answer = 1/13
Q5. Find probability of getting Tail in one toss.
Solution:
1 favorable outcome
2 total outcomes
✅ Answer = 1/2
Q6. Find probability of getting odd number on dice.
Solution:
Odd numbers = 1, 3, 5
Favorable outcomes = 3
Total outcomes = 6
✅ Answer = 1/2
Q7. Find probability of selecting King from deck of cards.
Solution:
Kings = 4
Total cards = 52
✅ Answer = 1/13
Q8. Find probability of impossible event.
Solution:
Impossible event probability = 0
✅ Answer = 0
Q9. Find probability of certain event.
Solution:
Certain event probability = 1
✅ Answer = 1
Q10. A bag contains 5 red and 5 blue balls. Find probability of selecting red ball.
Solution:
Total balls = 10
Red balls = 5
4✅ Answer = 1/2
Observation Tricks
- Count favorable outcomes carefully
- Remember total outcomes
- Simplify fractions quickly
- Use complement probability when needed
Important Probability Formulas
| Topic | Formula |
|---|---|
| Probability | Favorable/Total |
| Complement | 1 − P(A) |
| Certain Event | 1 |
| Impossible Event | 0 |
| Dice Outcomes | 6 |
🎯 Daily Practice Strategy
- Practice dice problems
- Practice coin toss questions
- Revise card probability
- Practice favorable outcome calculations
- Practice fraction simplification
This improves:
- Logical reasoning
- Analytical thinking
- Competitive exam confidence
Bank Exam Practice Material Series
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