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InterviewSolution
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The radius of base of a solid right circular iron - rod is 32 cm and the length of the rod is 35 cm . How many solid right circular cone of radius of base 8 cm and of height 28 cm can be made by melting this rod ? |
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Answer» The radius of the base of the rod = 32 cm and its length = 35 cm ` :.` volume of the rod ` = pi xx (32)^(2) xx 35 ` cc Again , the radius of base of each cone = 8 cm and height of each cone = 28 cm ` :. ` volume = ` 1/3 xx pi xx (8)^(2) xx 28 xx x = pi xx (32)^(2) xx 35 ` ` rArr x= ( 32 xx 32 xx 35 xx 3)/(8xx 8xx 28 ) ` ` rArr x = 60 ` Hence the required number of solid cone is 60 . |
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