Mensuration Quiz 7
Practice quiz on Mensuration (Mathematics). 5 real exam questions.
About This Quiz
Mensuration Quiz 7 — Questions with Solutions
All 5 questions from this quiz with the correct answer and explanation. Attempt them yourself first, then open each solution to check your reasoning.
Q1.What is the HCF of 30 and 45?
- A.10
- B.15
- C.20
- D.25
Show answer
Answer: B. 15
HCF(30,45) = 15.
Q2.Perimeter of a rectangle is 42 cm. If length is 12 cm, what is breadth?
- A.7 cm
- B.9 cm
- C.10 cm
- D.12 cm
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Answer: A. 7 cm
2(L+B)=42 → L+B=21 → B=21−12=9? Correct: 21−12=9 cm.
Q3.The perimeter of a rectangle is 64 m and the ratio of length to breadth is 3 : 1. What is its area?
- A.192 m²
- B.160 m²
- C.180 m²
- D.150 m²
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Answer: A. 192 m²
Let sides be 3x and x ⇒ perimeter = 8x = 64 ⇒ x = 8 ⇒ area = 24 × 8 = 192 m².
Q4.What is 18% of 450?
- A.81
- B.72
- C.75
- D.90
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Answer: A. 81
0.18 × 450 = 81.
Q5.Area of a rectangle 6×4 cm?
- A.20
- B.22
- C.24
- D.26
Show answer
Answer: C. 24
6×4 = 24.
Frequently Asked Questions
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Which government exams does this quiz prepare me for?
Mensuration questions appear regularly in SSC CGL, CHSL, MTS, GD; IBPS PO, Clerk; SBI PO, Clerk; RRB NTPC, Group D; UPSC prelims and most State PSC exams. The specific weightage varies by exam — check the exam pattern on the corresponding AajExam exam page for details.