Question

It costs Rs.$2200$ to paint the inner curved surface of a cylindrical vessel $10m$ deep. If the cost of painting is at the rate of Rs.$20$ per $m^2$.Find Inner curved surface area of the vessel.

• A. $110m^2$
• B. $140m^2$
• C. $210m^2$
• D. $120m^2$

Answer 1

The correct option is A $110m^2$

If the cost of painting is at the rate of Rs.$20$ per $m^2$, then it costs Rs $2200$ for the area $\frac{2200}{20}=110m^2$
Hence, the inner curved surface area of the vessel is $110m^2$