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Question

A hemispherical bowl of internal radius 9 cm is full of liquid . The liquid is to be filled into cylindrical shaped bottles each of radius 1.5 cm and height 4 cm . How many bottles are needed to empty the bowl ?

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Solution

The radius of the hemispherical bowl, R = 9 cm
Radius of the cylinderical bottles, r = 1.5 cm
Height of the bottles, h = 4 cm
Let the number of bottles required be n.
Volume of the hemispherical bowl = n × Volume of the cylinderical bottles
Volume of the hemispherical BowlVolume of the cylinderical bottles=n23πR3πr2h=n23931.524=n54=n
Hence, the 54 bottles are required.

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