A factory manufactures 120000 pencils daily the pencils are cylindrical in shape each of length 25 cm and circumference of base is 1.5 CM determine the cost of colouring the curved surface of pencil manufactured in one day at rupees 0.05 per DM square
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CSA=2πrh
2*22/7*21/88*27
1001/7
2*22/7*21/88*27
1001/7
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