NCERT Class 10
A bucket is in the form of a frustum of a cone of height 30 cm with radii of its lower and upper ends as 10 cm and 20 cm respectively. Find the capacity and surface area of the bucket. Also find the cost of milk which can completely fill the container at the rete of Rs.25 per litre .
26
Nov
A bucket is in the form of a frustum of a cone of height 30 cm with radii of its lower and upper ends as 10 cm and 20 cm respectively. Find the capacity and surface area of the bucket. Also find the cost of milk which can completely fill the container at the rete [...]
Three cubes of metal whose edges are in the ratio 3:4:5 are melted and formed into a single cube whose diagonal is 12 root3 cm. Find the edges of three cubes.
26
Nov
Three cubes of metal whose edges are in the ratio 3:4:5 are melted and formed into a single cube whose diagonal is 12 root3 cm. Find the edges of three cubes. Three cubes of metal whose edges are in the ratio 3:4:5 are melted and formed into a single cube whose diagonal is 12 root3 [...]
A cone of radius 4 cm is divided into two parts by drawing a plane through the midpoint of its axis and parallel to its base, compare the volume of the two parts.
26
Nov
A cone of radius 4 cm is divided into two parts by drawing a plane through the midpoint of its axis and parallel to its base, compare the volume of the two parts. A cone of radius 4 cm is divided into two parts by drawing a plane through the midpoint of its axis and [...]
A canal is 300 cm wide and 120 cm deep, the water in the canal is flowing with a speed of 20 km/h. How much area will it irrigate in 20 min, if 8 cm of standing water is desired?
26
Nov
A canal is 300 cm wide and 120 cm deep, the water in the canal is flowing with a speed of 20 km/h. How much area will it irrigate in 20 min, if 8 cm of standing water is desired? A canal is 300 cm wide and 120 cm deep if 8 cm of standing [...]
A solid metallic sphere of radius 10.5cm is melted and thus recast into small cones, each of radius 3.5cm and height 3cm. Find the number of cones so formed.
26
Nov
A solid metallic sphere of radius 10.5cm is melted and thus recast into small cones, each of radius 3.5cm and height 3cm. Find the number of cones so formed. A solid metallic sphere of radius 10.5cm is melted and thus recast into small cones each of radius 3.5cm and height 3cm. Find the number of [...]
A cone of maximum size is carved out from a cube of edge 14 cm. Find the surface area of the remaining solid after the cone is carved out.
26
Nov
A cone of maximum size is carved out from a cube of edge 14 cm. Find the surface area of the remaining solid after the cone is carved out. A cone of maximum size is carved out from a cube of edge 14 cm. Find the surface area of the remaining solid after the cone [...]
Actual capacity of a vessel as shown in figure is equal to the difference of volume of the cylinder and the volume of the hemisphere.
26
Nov
Actual capacity of a vessel as shown in figure is equal to the difference of volume of the cylinder and the volume of the hemisphere. Actual capacity of a vessel as shown in figure is equal to the difference of volume of the cylinder and the volume of the hemisphere. November 26, 2020 Category: Chapter [...]
Total surface area of the top shown in the figure is the sum of total surface area of hemisphere and the total surface area of a cone.
26
Nov
Total surface area of the top shown in the figure is the sum of total surface area of hemisphere and the total surface area of a cone. Total surface area of the top shown in the figure is the sum of total surface area of hemisphere and the total surface area of a cone. November [...]
Two identical solid cubes of side a units are joined end to end. Then the total surface area of the resulting cuboid is 12a^2.
26
Nov
Two identical solid cubes of side a units are joined end to end. Then the total surface area of the resulting cuboid is 12a^2. Two identical solid cubes of side a units are joined end to end. Then the total surface area of the resulting cuboid is 12a^2. November 26, 2020 Category: Chapter 13 - [...]
A spherical steel ball is melted to make a 8 new identical balls. Then, the radius of the each new ball be 1/8 th the radius of the original ball.
26
Nov
A spherical steel ball is melted to make a 8 new identical balls. Then, the radius of the each new ball be 1/8 th the radius of the original ball. A spherical steel ball is melted to make a 8 new identical balls. Then the radius of the each new ball be 1/8 th the [...]