Question Answers
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10. A right triangle with sides 6 cm, 8 cm and 10 cm is revolved about the side 8 cm. Find the volume and the curved surface of the solid so formed.
03
Jul
10. A right triangle with sides 6 cm, 8 cm and 10 cm is revolved about the side 8 cm. Find the volume and the curved surface of the solid so formed. 10. A right triangle with sides 6 cm 8 cm and 10 cm is revolved about the side 8 cm. Find the volume [...]
9. A shopkeeper has one spherical laddoo of radius 5cm. With the same amount of material, how many laddoos of radius 2.5 cm can be made?
03
Jul
9. A shopkeeper has one spherical laddoo of radius 5cm. With the same amount of material, how many laddoos of radius 2.5 cm can be made? 9. A shopkeeper has one spherical laddoo of radius 5cm. With the same amount of material how many laddoos of radius 2.5 cm can be made? July 3, 2021 [...]
8. A small village, having a population of 5000, requires 75 litres of water per head per day. The village has got an overhead tank of measurement 40 m × 25 m × 15 m. For how many days will the water of this tank last?
03
Jul
8. A small village, having a population of 5000, requires 75 litres of water per head per day. The village has got an overhead tank of measurement 40 m × 25 m × 15 m. For how many days will the water of this tank last? 8. A small village having a population of 5000 [...]
7. A cylindrical roller 2.5 m in length, 1.75 m in radius when rolled on a road was found to cover the area of 5500 m^2. How many revolutions did it make?
03
Jul
7. A cylindrical roller 2.5 m in length, 1.75 m in radius when rolled on a road was found to cover the area of 5500 m^2. How many revolutions did it make? 1.75 m in radius when rolled on a road was found to cover the area of 5500 m^2. How many revolutions did it [...]
6. A school provides milk to the students daily in a cylindrical glasses of diameter 7 cm. If the glass is filled with milk upto an height of 12 cm, find how many litres of milk is needed to serve 1600 students.
03
Jul
6. A school provides milk to the students daily in a cylindrical glasses of diameter 7 cm. If the glass is filled with milk upto an height of 12 cm, find how many litres of milk is needed to serve 1600 students. 6. A school provides milk to the students daily in a cylindrical glasses [...]
5. Two solid spheres made of the same metal have weights 5920 g and 740 g, respectively. Determine the radius of the larger sphere, if the diameter of the smaller one is 5 cm.
03
Jul
5. Two solid spheres made of the same metal have weights 5920 g and 740 g, respectively. Determine the radius of the larger sphere, if the diameter of the smaller one is 5 cm. 5. Two solid spheres made of the same metal have weights 5920 g and 740 g if the diameter of the [...]
4. How many square metres of canvas is required for a conical tent whose height is 3.5 m and the radius of the base is 12 m?
03
Jul
4. How many square metres of canvas is required for a conical tent whose height is 3.5 m and the radius of the base is 12 m? 4. How many square metres of canvas is required for a conical tent whose height is 3.5 m and the radius of the base is 12 m? July [...]
3. Find the amount of water displaced by a solid spherical ball of diameter 4.2 cm, when it is completely immersed in water.
03
Jul
3. Find the amount of water displaced by a solid spherical ball of diameter 4.2 cm, when it is completely immersed in water. 3. Find the amount of water displaced by a solid spherical ball of diameter 4.2 cm when it is completely immersed in water. July 3, 2021 Category: Chapter 13 - Surface Areas [...]
2. A storage tank is in the form of a cube. When it is full of water, the volume of water is 15.625 m^3 . If the present depth of water is 1.3 m, find the volume of water already used from the tank.
03
Jul
2. A storage tank is in the form of a cube. When it is full of water, the volume of water is 15.625 m^3 . If the present depth of water is 1.3 m, find the volume of water already used from the tank. 2. A storage tank is in the form of a cube. [...]
1. Metal spheres, each of radius 2 cm, are packed into a rectangular box of internal dimensions 16 cm × 8 cm × 8 cm. When 16 spheres are packed the box is filled with preservative liquid. Find the volume of this liquid. Give your answer to the nearest integer. [Use π = 3.14 ]
03
Jul
1. Metal spheres, each of radius 2 cm, are packed into a rectangular box of internal dimensions 16 cm × 8 cm × 8 cm. When 16 spheres are packed the box is filled with preservative liquid. Find the volume of this liquid. Give your answer to the nearest integer. [Use π = 3.14 ] [...]