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Engineering Exams RRB-JE JE (Junior Engineer) CMA (Chemical and Metallurgical Assistant) DMS (Depot Material Superintendent) CS (Chemical Supervisor - Research) MS (Metallurgical Supervisor - Research) Mathematics 2024 16.12.24 Paper-1 Shift-3 Medium +1 -0.33
Evaluate: 16 + 18 ÷ 3 - 3 × 3
Correct Answer: A. 13
Explanation: The correct answer is Option A: 13. To solve the expression 16 + 18 ÷ 3 - 3 × 3, follow the order of operations (PEMDAS/BODMAS), which prioritizes division and multiplication before addition and subtraction. First, perform the division: 18 ÷ 3 = 6. Next, perform the multiplication: 3 × 3 = 9. The expression now becomes 16 + 6 - 9. Then, carry out the addition: 16 + 6 = 22. Finally, subtract 9 from 22 to get the result: 22 - 9 = 13.
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