Calculate the number of bricks, each measuring 25 cm * 15 cm * 8 cm required to construct a wall of dimensions 10 m * 4 m * 5 m when 10% of its volume is occupied by mortar?

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The edges of three iron cubes are 6cm; 8cm; 10cm respectively. A new cube was made by melting them. Find the edge of the new cube?

A. 8 cm B. 12 cm C. 14 cm D. 10 cm...

The radius of a cylinder is 2 r units and height is 3 r units. Find the curved surface?

A. 18 πr2 sq units B. 3 πr2 sq units C. 12 πr2 sq units D. 6 πr2 sq units...

If the height of a cone is increased by 100% then its volume is increased by_________?

A. 100% B. 200% C. 300% D. 400%...

If in a box of dimensions 6 m * 5 m * 4 m smaller boxes of dimensions 60 cm * 50 cm * 40 cm are kept in it, then what will be the maximum number of the small boxes that can be kept in it?

A. 500 B. 1000 C. 900 D. 600...

A rectangular field 30 m long and 20 m broad. How much deep it should be dug so that from the earth taken out, a platform can be formed which is 8 m long, 5.5 m broad and 1.5 m high where as the earth taken out is increase by 10/5?

A. 12 cm B. 10 cm C. 18 cm D. 24 cm...