In a colony, there are 1000 lamp posts cylindrical in shape. The diameter of each lamp
post is 35 em and height is 3 m. Find the total cost of painting the curved surface area
of all the lamp posts at the rate of 15 per square metre.
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In a colony, there are 1000 lamp posts cylindrical in shape. The diameter of each lamp
post is 35 em and height is 3 m. Find the total cost of painting the curved surface area
of all the lamp posts at the rate of 15 per square metre.
Joy of Mathematics &
Answered by
2
Answer:
D=35,h=3
D=35cm. D=0.35 m
R=0.35/2
L.S.A=2*22/7*35/2*3
=33/10
Total cost = 33/10*1000*15
=₹49500
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