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Question

A cylindrical container of depth 20 m and radius 0.7 m is painted for Rs.8800. If the painter takes Rs.40 per sq. meter to paint the cylindrical container, then find the CSA of the cylindrical vessel.


A

385

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B

192.5

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C

96.25

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D

770

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Solution

The correct option is C

96.25


Curved surface area (CSA) of the cylindrical vessel = 2πrd
CSA = π ×​ 2 ×(710) × 20
CSA = 227 ×​ 2 ×710 ×​ 20
CSA =88 m2


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