#### Question

A cylindrical pillar is 50 cm in diameter and 3.5 m in height. Find the cost of painting the curved surface of the pillar at the rate of 12.50 per `m^2`.

#### Solution

Given that

Height of the pillar = 3.5m

Radius of the circular end of the pillar=`50/2`cm

=25cm=0.25m

Curved surface area of pillar = 2πrh

=2 ×`22/7× 0.25 × 3.5m^2`

`=5.5m^2`

Cost of painting 21m area – Rs 12.50

Cost of painting `5.5m^2 area Rs.(5.5 × 12.50)

=Rs. 68.75.

Thus, the cost of painting the CSA pillar is Rs. 68,75

Is there an error in this question or solution?

Solution for question: A Cylindrical Pillar is 50 Cm in Diameter and 3.5 M in Height. Find the Cost of Painting the Curved Surface of the Pillar at the Rate of 12.50 per `M^2`. concept: Surface Area of a Right Circular Cylinder. For the course CBSE