181.A bag of grains contains 2.8 m3 of grain. How many bags of grain are needed to fill a right circular cylindrical drum of radius 4.2 m and height 5 m?
182.A cylindrical pipe open at both ends is made of iron sheet which is 2 cm thick. If the outer diameter is 16 cm and its length is 100 cm, find how many cubic centimeters of iron has been used in making the tube?
Solution not provided.
Ans. 8800 cm3
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183.How many cylindrical glasses of 3 cm base radius and height 8 cm can be refilled from a cylindrical vessel of base radius 15 cm which is filled upto a height of 32 cm?
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184.A cylindrical container of base radius 28 cm contains sufficient water to submerge a rectangular block of iron with dimensions 32 cm x 22 cm x 14 cm. Find the rise in the level of water, when the block is completely submerged.
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185.
The volume of a right circular cylinder is 3850 cm3. Find its height if its, diameter is 14 cm.
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186.The pillars of a temple are cylindrically shaped. If each pillar has a circular base of radius 20 cm and height 10 m, how much concrete mixture would be required to build 14 such pillars?
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187.The total surface area of a cylinder of radius 7 cm is 880 m2. Find the height and the volume of the cylinder.
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188.Find the volume of the right circular cone with (i) radius 6 cm, height 7 cm
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189.Find the volume of the right circular cone with (ii) radius 3.5 cm, height 12 cm.
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190.Find the capacity in litres of a conical vessel with (i) radius 7 cm, slant height 25 cm
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