A building has 25 cylindrical shaped poles. Each has a radius of 28 cm and a height of 4 cm. Find the cost of painting curved surface of all poles at the rate of Rs. 8 per m2.
8 Rs
7.23 Rs
14.08 Rs
56.32 Rs
A
7.23 Rs
B
8 Rs
C
14.08 Rs
D
56.32 Rs
Open in App
Solution
Verified by Toppr
Given,
Radius of each pillar= 28 cm
Height of each pillar=4 cm
So, as we all know
CSA of a cylinder=2227rh
CSA of one pillar
=2227(28)(4)
Was this answer helpful?
7
Similar Questions
Q1
A building has 25 cylindrical shaped poles. Each has a radius of 28 cm and a height of 4 cm. Find the cost of painting curved surface of all poles at the rate of Rs. 8 per m2.
View Solution
Q2
In a building there are 24 cylindrical pillars. The radius of each pillar is 28cm and height is 4cm. Find the total cost of painting the curved surface area of all pillars at the rate of Rs.8perm2.
View Solution
Q3
In a building there are 48 cylindrical pillars.The radius of each pillar is 28cm and height is 4m.Find the total cost of pointing the curved surface area of all pillars at the rate of Rs.8 per m2
View Solution
Q4
A cylindrical tank has a capacity of 6160 m3. Find its depth if its radius is 14 m. Calculate the cost of painting its curved surface (outer) at the rate of Rs. 3 per m2.
View Solution
Q5
In a building, there are 24 cylindrical pillars. For each pillar, the radius is 28m and the height is 4m. Find the total cost of painting the curved surface area of the pillars at the rate of Rs.8 per metre square