Question:
In b = 66.6 a + 12 * n;, which operation will be performed first?
In b = 66.6 a + 12 * n;, which operation will be performed first?
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Whenever multiplication and division appear together without brackets, evaluate them from left to right because they have equal precedence.
Updated On: Jun 16, 2026
- 66.6 a
- 12 * n
- a + 12
- Depends upon the compiler
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The Correct Option is A
Solution and Explanation
Concept:
Operator precedence and associativity determine the order in which operations are executed in an expression. Multiplication and division operators have the same precedence level, which is higher than addition and subtraction. When operators have equal precedence, evaluation proceeds from left to right.
Step-by-Step Evaluation:
• Identify the operators present: The expression contains division (/), multiplication (*), and addition (+).
• Apply precedence rules: Division and multiplication must be evaluated before addition because they belong to the multiplicative precedence level.
• Apply associativity: Since division and multiplication have equal precedence, the compiler evaluates them from left to right.
• Determine the first operation: Reading the expression from left to right, 66.6 a appears before 12 * n. Therefore, division is performed first. Conclusion: The first operation executed is 66.6 a. Therefore, option (A) is correct.
• Identify the operators present: The expression contains division (/), multiplication (*), and addition (+).
• Apply precedence rules: Division and multiplication must be evaluated before addition because they belong to the multiplicative precedence level.
• Apply associativity: Since division and multiplication have equal precedence, the compiler evaluates them from left to right.
• Determine the first operation: Reading the expression from left to right, 66.6 a appears before 12 * n. Therefore, division is performed first. Conclusion: The first operation executed is 66.6 a. Therefore, option (A) is correct.
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