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Evaluate: 48 ÷ 6 × 4 - 3 × 5
17
22
15
12
17
Perform division and multiplication from left to right simultaneously before handling subtraction.
Expression to evaluate: 48 ÷ 6 × 4 - 3 × 5
BODMAS: Brackets→Of→Division→Multiplication→Addition→Subtraction
Perform division and multiplication from left to right simultaneously before handling subtraction.
Students often perform multiplication before division (e.g., calculating 6×4=24 first), which leads to an incorrect final answer.
Step 1: Division
According to the BODMAS rule, division and multiplication have equal precedence and are performed from left to right. First, evaluate the division part: 48÷6=8.
48÷6=8
Step 2: Multiplication
Substitute the result into the expression: 8×4−3×5. Next, perform the multiplication operations from left to right: 8×4=32 and 3×5=15.
32−15
Step 3: Subtraction
Finally, perform the subtraction between the two products: 32−15=17.
32−15=17
A is correct because evaluating the expression using the BODMAS rule yields 17.
Mastering order of operations is essential for simplifying complex algebraic expressions and solving data interpretation calculations quickly in competitive exams.
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