The area of the base of a right circular cone is 81π cm² and its height is 12 cm. What is the curved surface area (in cm2) of the con...
The sum of the perimeters of a square and a rectangle is 120 metres. If the sum of the length and breadth of the rectangle is 32 cm, then find the area ...
A sphere of radius 21 cm is melted and recast into 66 smaller spheres of equal size. Find the radius of each smaller sphere(approximately).
Suresh started his journey form P to Q by his bike at the speed of 40 km/h and then, the same distance he travelled on his foot at the speed of 10 km/h ...
A giant circular wheel has a diameter of 14 metres. In how many revolutions will the wheel cover a total of 16.5 km?
A cylindrical tank of 28 cm base radius is partly filled with water. How many spherical iron balls of 1cm radius are added in it in order to increase th...
The ratio of males and females in a zoo is 6:7 respectively and the percentage of children among males and the percentage of children among females are ...
The lateral surface area of a cube is 324 cm2 . The length of a cuboid is 50% more than the side of the cube. The breadth of the cuboid is 9 ...
If the length of a rectangle is increased by 10% and its breadth is decreased by 5%, then the area of the rectangle will be increased or decreased by ho...
