Question
A bulb of 100 W is used for 10 hours. Find the energy
consumed in kWh. ÂSolution
Energy = Power × Time = 100×10=1000wh = 1kwh
A cone is parallel to its base in such a way that the volume of the smaller cone is  1/2197 times of the bigger cone. Find the height of the smaller co...
The length of a rectangle is 7 cm more than the radius of a circle. The perimeter of the rectangle is 60 cm, and the ratio of its length to breadth is 7...
 A path of width 3 m is made outside and around a rectangular field of perimeter 210 m. If the length of the field is 50% more than its breadth, then f...
The outer diameter of a hollow cylindrical brass rod is 9.1 cm. The rod is 35mm thick and is 40cm long. If the weight of 1 cubic centimeter of brass rod...
The volume and height of a cylinder are 2673 cm3 and 10.5 cm. Find the radius of the cylinder.
Perimeter of a square field is 100 meters and the area of a rectangular field is 40% more than that of the square field. Find the area (in m2...
The cost of painting the walls of a room 8 meter long and 10 meter wide at Rs 22.5 square per meter is 7290. What is the height of the room?
A rectangular hall is 12 m long and 9 m wide. A carpet is laid leaving a uniform border of 1 m all around the inside. Find the area of the border.
If perpendicular and base of a right-angle triangle are 18 cm and 24 cm respectively, then find the length of the shortest median of triangle.
The length of a cuboid is 8 cm and breadth is 7 cm. If the volume of the cuboid is 392 cubic cm, find the total surface area of ​​the cuboid.
