Question

If the sum of 11 and 40 is multiplied by 5, what is the result?

• A. 240
• B. 255
• C. 265
• D. 270

Answer 1

Answer:

B. 255

• Step 1: Calculate the Sum: The initial step requires finding the sum of the two given numbers, 11 and 40. 11 + 40 = 51.
• Step 2: Multiplication: Once the sum is obtained, it must be multiplied by the specified factor, which is 5. Therefore, the calculation is 51 × 5.
• Step 3: Final Calculation: 51 × 5 = 255.
• Key Mathematical Concept: This problem follows the Order of Operations (often remembered by the acronym BODMAS or PEMDAS). In this specific phrasing ('the sum of... is multiplied by...'), the use of the phrase 'the sum of' acts like a grouping bracket, forcing the addition to be performed before the multiplication.
• Formula representation: (11 + 40) × 5 = 255.