BODMAS Rule for Railway Exams - Short Tricks & Questions

 

📌 Introduction

BODMAS is one of the most essential mathematical concepts tested in Railway exams like RRB NTPC, Group D, ALP, and RRB JE. Questions based on BODMAS can help improve your problem-solving speed and accuracy. In this blog, we will cover BODMAS full form, rules, tricks, and practice questions to help you ace the Railway exams.

---

📝 What is BODMAS?

BODMAS stands for:

• B - Brackets ( ) [ ] { }
• O - Orders (Exponents, Square Roots)
• D - Division (÷)
• M - Multiplication (×)
• A - Addition (+)
• S - Subtraction (-)

🔢 BODMAS Rule Explained

To solve any mathematical expression correctly, always follow the BODMAS sequence:
1️⃣ Solve Brackets first
2️⃣ Solve Orders (powers and roots)
3️⃣ Perform Division and Multiplication (from left to right)
4️⃣ Perform Addition and Subtraction (from left to right)

📌 Example 1:
Solve: 8 + 6 ÷ 2 × 3 - 4

Step-by-Step Solution:

1. Division first: 6 ÷ 2 = 3
2. Multiplication next: 3 × 3 = 9
3. Solve Addition & Subtraction: 8 + 9 - 4 = 13

✅ Final Answer: 13

---

💡 BODMAS Short Tricks for Railway Exams

✔️ Always solve brackets first before applying other operations.
✔️ Multiplication & Division are solved from left to right, not separately.
✔️ Addition & Subtraction are solved from left to right, not separately.
✔️ If there are multiple brackets, solve them in this order: ( ) → { } → [ ]

📌 Example 2:
Solve: [4 + {6 × (3 + 2)}] ÷ 2

Step 1: Solve the inner bracket: (3+2) = 5
Step 2: Multiply: 6 × 5 = 30
Step 3: Solve the middle bracket: {6 × 5} = 30
Step 4: Solve outer bracket: 4 + 30 = 34
Step 5: Divide by 2: 34 ÷ 2 = 17

✅ Final Answer: 17

---

📈 Importance of BODMAS in Railway Exams

✔️ Frequently asked in Railway Group D, NTPC & ALP exams
✔️ Helps in Data Interpretation (DI) & Quantitative Aptitude
✔️ Improves calculation speed & accuracy

---

🔥 Practice Questions for RRB Exams

🔹 Q1: Solve 20 ÷ 5 × (4 + 6) - 3
🔹 Q2: Solve [10 + {8 ÷ (4 ÷ 2)}] × 3
🔹 Q3: Solve (50 ÷ 5) × (8 - 6) + 10

📌 Drop your answers in the comments!

Categories:

• Railway Exam Preparation
• Mathematics Tricks
• Competitive Exam Study