18 cylindrical water bottles with height same as that of the radius are emptied into a spherical earthen pot. The bottles fill half of the initially empty earthen pot. Find the ratio of the radius of the cylinder and that of the pot?Choices:- 2:12 1:3 1:4 1:5
Question
18 cylindrical water bottles with height same as that of the radius are emptied into a spherical earthen pot. The bottles fill half of the initially empty earthen pot. Find the ratio of the radius of the cylinder and that of the pot?Choices:- 2:12 1:3 1:4 1:5
Solution
The volume of a cylinder is given by the formula V = πr²h. Since the height is the same as the radius for these water bottles, the volume of one water bottle is V = πr³.
Given that there are 18 water bottles, the total volume of water is 18πr³.
The volume of a sphere is given by the formula V = 4/3πR³. Since the water fills half of the earthen pot, the volume of the pot is 2 * 18πr³ = 36πr³.
Setting these two equal to each other, we get 4/3πR³ = 36πr³.
Solving for R/r, we get R/r = (36 * 3/4)^(1/3) = 3.
So, the ratio of the radius of the cylinder to the radius of the pot is 1:3.
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