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 Form 4 Mathematics Paper 1 Exam Revision Questions With Answers

A solid metal sphere of radius 7.5 cm is melted down and recast into a solid cylinder of height 15 cm. In the process 4% of the metal is lost. Calculate
a) in terms of π the volume of metal used to make the cylinder.
b) the radius of the cylinder.

 (1m 55s)
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