(i) A tinmaker converts a cubical metallic box into 10 cylindrical tins Side of a cube is
50 cm and radius of the cylinder is 7 cm. Find the height of each cylinder so made
if the wastage of 12% is incurreal in the process.
Answers
Answered by
36
Answer:
side of the cube= 50cm
radius of cylinders= 7cm
wastage= 12%
no. of cylinders made= 10
height of one cylinder= ?
Solution:
=>Volume of a cube= a^3
=> (50)^3
=> 125000cm^3
=> 12% wastage= 12/100×125000
=> volume of 10 cylinders= 15000cm^3
=> volume of one cylinder= 15000/10
=> volume of one cylinder= 1500cm^3
=> 1500= πr^2h
=> 1500= 22/7×7×7×h
=> 1500/154= h
=> h= 9.74cm
therefore, the height of one cylinder is 9.74cm
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Answered by
52
Therefore the height of each cylinder is 23cm
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