a) 344.35 cm2 b) 462 cm2 c) 498.35 cm2 d) None of these Answer: c Explanation: $$\eqalign{ & h = ...
View QuestionA cistern of capacity 8000 litres measures externally 3.3 m by 2.6 m by 1.1 m and its walls are 5 cm thick. The thickness of the bottom is:
A cistern of capacity 8000 litres measures externally 3.3 m by 2.6 m by 1.1 m and its ...
View QuestionThe curved surface area of a cylindrical pillar is 264 m^2 and its volume is 924 m^3. Find the ratio of its diameter to its height.
The curved surface area of a cylindrical pillar is 264 m2 and its volume is 924 m3. Find ...
View QuestionThe height of a right circular cylinder is 6 m. If three times the sum of the areas of its two circular faces is twice the area of the curved surface, then the radius of its base is :
a) 1 m b) 2 m c) 3 m d) 4 m Answer: d Explanation: $$\eqalign{ & 3 ...
View QuestionThe volumes of two cubes are in the ratio 8 : 27. The ratio of their surface areas is :
a) 2 : 3 b) 4 : 9 c) 12 : 9 d) None of these Answer: b Explanation: ...
View QuestionAn aluminium sheet 27 cm long, 8 cm broad and 1 cm thick is melted into a cube. The difference in the surface areas of the two solids would be :
a) Nil b) 284 cm2 c) 286 cm2 d) 296 cm2 Answer: c Explanation: Volume of cube = Volume ...
View QuestionA swimming pool 9 m wide and 12 m long is 1 m deep on the shallow side and 4 m deep on the deeper side. It volume is :
a) 208 m3 b) 270 m3 c) 360 m3 d) 408 m3 Answer: b Explanation: Volume ...
View QuestionA closed aquarium of dimensions 30 m × 25 cm × 20 cm is made up entirely of glass plates held together with tapes. The total length of tape required to hold the plates together (ignore the overlapping tapes) is :
A closed aquarium of dimensions 30 m × 25 cm × 20 cm is made up entirely of ...
View QuestionEach side of a cube is decreased by 25%. Find the ratio of the volume of the original cube and the resulting cube = ?
a) 64 : 1 b) 27 : 64 c) 64 : 27 d) 8 : 1 Answer: c Explanation: ...
View QuestionThe base of a pyramid is an equilateral triangle of side 1 m. If the height of the pyramid is 4 metres, then the volume is :
a) 0.550 m3 b) 0.577 m3 c) 0.678 m3 d) 0.750 m3 Answer: b Explanation: Area of the base ...
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