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1.
A sphere and a cube have equal surface areas. The ratio of the volume of the sphere to that of cube is
2.
Given that 1 cu. cm of marble weighs 25 g, the weight of a marble block of 28 cm in width and 5 cm thick, is 112 kg. The length of the block is
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4.
In a swimming pool measuring 90 m x 40 m, 150 men take a dip. If the average displacement of water by a man is 8 Cubic Meter, then rise in water level is
5.
The radius (in cm) of the largest right circular cone that can be cut out from a cube of edge 4.2 cm is
6.
How many bags of grain can be stored in a cuboid granary 12 m × 6 m × 5 m. If each bag occupies a space of 0.48 m³?
7.
If two solid hemispheres of the same base radius r are joined together along their bases, then curved surface area of this new solid is
8.
A cube whose edge is 20 cm long, has circles on each of its faces painted black. What is the total area of the unpainted surface of the cube if the circles are of the largest possible areas?
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10.
A surahi is the combination of