School Olympiads - International Mathematics Olympiad (IMO)

Mensuration (Surface Area & Volume) question bank (Class 7 & 8 - Advanced Arithmetic, Algebra & Geometry)

Practice 5 free School Olympiads - International Mathematics Olympiad (IMO) Class 7 & 8 - Advanced Arithmetic, Algebra & Geometry - Mensuration (Surface Area & Volume) questions with answers and step-by-step solutions.

Q1.
A metallic sphere of radius $6\text{ cm}$ is melted and recast into small cones, each of radius $2\text{ cm}$ and height $3\text{ cm}$. How many such small cones are formed?

(A)
{'key': 'A', 'text': '54'}
(B)
{'key': 'B', 'text': '72'}
(C)
{'key': 'C', 'text': '108'}
(D)
{'key': 'D', 'text': '216'}
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Q2.
[Achievers Section - HOTS]
In an Olympiad competition problem on Mensuration (Surface Area & Volume):
Find the numerical value of $X$ satisfying $$X = (39 \times 7) - 10 + 5$$.

(A)
{'key': 'A', 'text': '268'}
(B)
{'key': 'B', 'text': '272'}
(C)
{'key': 'C', 'text': '264'}
(D)
{'key': 'D', 'text': '277'}
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