🧮 Introduction to Arithmetic Reasoning
What is Arithmetic Reasoning?
Arithmetic Reasoning involves solving mathematical word problems using basic arithmetic operations like addition, subtraction, multiplication, and division. It tests your ability to apply mathematical concepts to real-world situations.
💡 Key Point: The key to solving arithmetic reasoning problems is to break them down into simple steps and identify the mathematical operations needed.
📚 Sample Problem Types
Handshake Problems
Example: If 10 people shake hands with each other once, how many handshakes occur?
Formula: n(n-1)/2 where n = number of people
Solution: 10×9÷2 = 45 handshakes
Time & Work Problems
Example: If 3 workers complete a job in 4 days, how long would 6 workers take?
Concept: Inverse proportion – more workers means less time
Solution: 3×4÷6 = 2 days
Age Problems
Example: A father is 3 times as old as his son. After 10 years, he’ll be twice as old. Find their current ages.
Approach: Set up equations and solve simultaneously
🎯 Problem-Solving Strategies
Step-by-Step Approach
- Read carefully – Understand what’s being asked
- Identify knowns – List given information
- Choose operations – Decide which math operations to use
- Set up equation – Create mathematical representation
- Solve stepwise – Work through the calculations
- Verify answer – Check if result makes sense