Calculate: 15 * 8 / 4 + 12 - 6. | Mathematics MCQ | Examoogle

BODMAS: Division→Multiplication→Addition→Subtraction\text{BODMAS: } \text{Division} \to \text{Multiplication} \to \text{Addition} \to \text{Subtraction}BODMAS: Division→Multiplication→Addition→Subtraction

⚡ Exam Hall Shortcut / Speed Trick

Apply division and multiplication first from left to right, then combine additions and subtractions efficiently.

⚠️ Common Student Trap / Pitfall

Performing calculations strictly from left to right instead of following the correct BODMAS order of precedence.

📊 Diagram / Illustration

🔢 Step-by-Step Solution

Identify the Expression and Rule

We need to evaluate the expression $15 \times 8 \div 4 + 12 - 6$ by following the standard BODMAS rule.

15×8÷4+12−615 \times 8 \div 4 + 12 - 615×8÷4+12−6

Perform Division

First, perform the division operation from left to right: $8 \div 4 = 2$ .

8÷4=28 \div 4 = 28÷4=2

Perform Multiplication

Next, perform the multiplication: $15 \times 2 = 30$ .

15×2=3015 \times 2 = 3015×2=30

Perform Addition and Subtraction

Substitute the calculated value back into the expression: $30 + 12 - 6 = 42 - 6 = 36$ .

30+12−6=3630 + 12 - 6 = 3630+12−6=36

✅

A is correct because evaluating the expression following the BODMAS rule yields 36.

Core Concepts Used

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BODMAS Rule Order of Operations Arithmetic Simplification

💡 EXAM TIP

Mastering operator precedence is essential for quick and accurate simplification in quantitative aptitude sections across all competitive exams.

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