Ben's office has a 32-litre water cooler in it.   Ben and his colleagues can get drinks in conical paper cups that are 7.46 cm high and have a radius of 4cm.   Assuming there are no spillages, how many cupfuls of water will the cooler provide before it needs refilling?

Elementary Geometry For College Students, 7e
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ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter9: Surfaces And Solids
Section9.3: Cylinders And Cones
Problem 36E: For a right circular cone, the slant height has a measure equal to twice that of the radius length...
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Ben's office has a 32-litre water cooler in it.
 
Ben and his colleagues can get drinks in conical paper cups that are 7.46 cm high and have a radius of 4cm.
 
Assuming there are no spillages, how many cupfuls of water will the cooler provide before it needs refilling?
 
Give your answer as a whole number.
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