Question

A factory manufactures 12000 pencils daily the pencils are cylindrical in shape each of length 25cm and circumference of base as 1.5cm determine the cost of colourung the csa of pencil manufactureed in one day at 0.05 per dm2 .

Answer 1

Answer:

Step-by-step explanation:

I hope it helps

Answer 2

Answer:

Step-by-step explanation:

Given:

Circumference of 1 pencil base(2πr)= 1.5cm

Length or height of 1 pencil(h)=25cm

Curved surface Area of cylinder(CSA) = 2πrh

CSA of 1 pencil =(2πr)h = 1.5× 25

CSA of 1 pencil = 37.5 cm²

CSA of 1 pencil =0.375 dm²

[1cm² = 1/100 dm²]

Factory manufactured pencil in one day= 120,000

Total CSA of 120000 pencils= 120,000×0.375

Total CSA of 120000 pencils= 45,000 dm²

Cost of colouring one pencil= ₹ 0.05

Total cost of 120000 pencils = 45,000× 0.05

=₹ 2,250.

HOPE THIS WILL HELP YOU...

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