Square area 1024 sq cm → rectangle dimensions from square side: A square has area 1024 sq cm. Consider a rectangle whose length is twice the square’s side and whose breadth is 12 cm less than that side. Find the ratio length : breadth of the rectangle.
Aptitude
Area
Difficulty: Easy
Choose an option
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A14:9
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B13:12
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C16:5
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D17:13
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ENone of these
Answer
Correct Answer: 16:5
Explanation
Introduction / Context:Use the square’s area to get its side, then translate to the rectangle’s dimensions and simplify the ratio.
Given Data / Assumptions:
- Square area = 1024 ⇒ side s = √1024 = 32 cm.
- Rectangle: length L = 2s = 64 cm; breadth B = s − 12 = 20 cm.
Concept / Approach:Compute L:B and reduce to lowest terms.
Step-by-Step Solution:
L:B = 64:20 ⇒ divide by 4 ⇒ 16:5.Verification / Alternative check:Values are integers and consistent with the description.
Why Other Options Are Wrong:14:9, 13:12, 17:13 do not match 64:20.
Common Pitfalls:Mistaking “twice the side” as “side + 2”.
Final Answer:16:5.