A factory manufactures \(110000\) pens daily. The pens are cylindrical in shape each of length \(25 cm\) and circumference of base as \(1.5 cm\). Determine the cost of colouring the curved surfaces of the pens manufactured in one day at \(Rs.0.07\) per \(dm^2\).
Curved surface area of pencil(in cm) \(=\)
Cost of colouring the pencil \(Rs.\)
Answer variants:
2987.5
3387.5
\(37.5\ cm^2\)
\(5.81\ cm^2\)
\(4.72\ cm^2\)
2887.5