Class 10 Maths · Surface Areas and Volumes · NCERT Exercise 12.4 · Question 7
A factory manufactures 120000 pencils daily. The pencils 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 pencils manufactured in one day at Rs 0.05 per dm.
Answer
Cost of colouring Rs .
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