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60s
SSC CGL
Quantitative Aptitude
Mensuration
Easy
Practice Question
Learn + Solve: Shortcut, Trap & Fast Route Click to view shortcut, steps, and common mistake
Learn + solve
Solve this faster with the right shortcut first
Shortcut used: Rectangle Reverse Perimeter
Solve in 3 steps:
- Fix the shape.
- Choose the matching formula.
- Substitute values with units.
Common mistake: Do not use area formula when perimeter or volume is asked.
Question 8
Multiple Choice Question
Question
The perimeter of a rectangle is 64 cm and its length is 23 cm. Find the breadth.
Explanation
Correct Answer: B
ANSWER
Correct Answer: B
Method / Topic: Mensuration
l+b = 64/2 = 32; breadth = 32-23 = 9 cm. Therefore, the required answer is 9.
Why this answer is correct
The answer uses the formula that matches the figure and target quantity.
Short Explanation
l+b = 64/2 = 32; breadth = 32-23 = 9 cm. Therefore, the required answer is 9.
Detailed Explanation
Question
The perimeter of a rectangle is 64 cm and its length is 23 cm. Find the breadth.
ANSWER
Correct Answer: B
Method / Topic: Mensuration
METHOD
Identify the relevant mensuration relation and determine the required length, area, surface area, volume, capacity, cost, or count.
CALCULATION:
l+b = 64/2 = 32; breadth = 32-23 = 9 cm.
CHECK:
The computed value matches the selected option exactly.
Final Answer
9
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Back to Topic
SSC CGL
Quantitative Aptitude
Mensuration
60s
Question 8
Easy
Marks: 1.0
Practice Question
Learn + Solve: Shortcut, Trap & Fast Route Click to view shortcut, steps, and common mistake
Learn + solve
Shortcut used, common trap, and the fastest solving route
Shortcut used: Rectangle Reverse Perimeter
Solve in 3 steps:
- Fix the shape.
- Choose the matching formula.
- Substitute values with units.
Common mistake: Do not use area formula when perimeter or volume is asked.
Question
The perimeter of a rectangle is 64 cm and its length is 23 cm. Find the breadth.
Explanation
Correct Answer: B
ANSWER
Correct Answer: B
Method / Topic: Mensuration
l+b = 64/2 = 32; breadth = 32-23 = 9 cm. Therefore, the required answer is 9.
Why this answer is correct
The answer uses the formula that matches the figure and target quantity.
Short Explanation
l+b = 64/2 = 32; breadth = 32-23 = 9 cm. Therefore, the required answer is 9.
Detailed Explanation
Question
The perimeter of a rectangle is 64 cm and its length is 23 cm. Find the breadth.
ANSWER
Correct Answer: B
Method / Topic: Mensuration
METHOD
Identify the relevant mensuration relation and determine the required length, area, surface area, volume, capacity, cost, or count.
CALCULATION:
l+b = 64/2 = 32; breadth = 32-23 = 9 cm.
CHECK:
The computed value matches the selected option exactly.
Final Answer
9
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Topic Recommendations
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Recommended Next Practice
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Concept tagged
Rectangle Reverse Perimeter
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Q11279: Find the total surface area of a cube with edge 6 cm.
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Q19567: A rectangle has area 160 cm^2 and length 20 cm. Find its breadth.
Mensuration · Easy
Q19568: In an SSC-style mensuration problem, a rectangle has area 198 cm^2 and length 22 cm. Find…
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Q19569: Using the given measurements, determine the unknown quantity: A rectangle has area 240 cm…
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