Office area in “square units”: An office floor measures 13 units by 9 units (rectangular). Compute the total area in square units.
Aptitude
Area
Difficulty: Easy
Choose an option
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A97
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B117
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C107
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D127
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E81
Answer
Correct Answer: 117
Explanation
Introduction / Context:A straightforward rectangle area calculation using unit measures (no physical units given).
Given Data / Assumptions:
- Length = 13 (units)
- Breadth = 9 (units)
- Area unit is “square units”.
Concept / Approach:Area of a rectangle A = L * B.
Step-by-Step Solution:
A = 13 * 9 = 117 square unitsVerification / Alternative check:Break 13 as 10 + 3: 10*9 = 90; 3*9 = 27; sum 117.
Why Other Options Are Wrong:97, 107, 127, 81 are not equal to 13*9.
Common Pitfalls:Adding instead of multiplying, or mixing up perimeter with area.
Final Answer:117