th of a cylindrical can contains milk. The height of the can is 1.4 m and radius is 0.4 m. This milk is poured into small cylindrical glasses of height 10 cm and radius 5 cm. How many small glasses are needed to empty the can?
Solution not provided.
Ans. 672
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A military tent is in the form of a right circular cone of vertical height 9 m, the diameter of the base being 10.5 m. If 18 soldiers can sleep in it, find the average cubic meters of air space available to each soldier.
The four of a rectangular hall has a perimeter 110 m. If the cost of painting the four walls at the rate of र 10 per m2 in र 13200, find the height of the hall.
Solution not provided.
Ans. 12 m
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So circular plates, each of radius 7 cm and thick ness cm are placed one above another to form a solid right circular cylinder. Find the total surface area and the volume of the cylinder so formed.
Solution not provided.
Ans. 1408 cm2
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How many meters of cloth 4 cm wide, will be required to make a conical tent, the radius of whose base is 600 cm and height is 8 cm (Use π = 3.14).