SSC CGL · Quantitative Aptitude
Cube, cuboid, cylinder, cone, sphere, hemisphere — surface area and volume.
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Q1 · Mensuration — 3D · EASY
The volume of a cube whose edge is 6 cm is:
Q2 · Mensuration — 3D · MEDIUM
The total surface area of a closed cylinder with radius 7 cm and height 10 cm (π = 22/7) is:
Q3 · Mensuration — 3D · EASY
A hemispherical bowl has an inner radius of 21 cm. What is the total surface area of the bowl (including the top circular edge)? (Take π = 22/7)
Q4 · Mensuration — 3D · MEDIUM
A solid metallic cone of radius 6 cm and height 8 cm is melted and recast into a sphere. What is the radius of the sphere? (Take π = 22/7)
Q5 · Mensuration — 3D · HARD
A cuboidal water tank has internal dimensions 8 m × 6 m × 5 m. If water is filled to 80% of its capacity, how many litres of water does it contain?