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The diameters of the top and the bottom portions of a bucket are 42 cm and 28 cm. If the height of the bucket is 24 cm, then find the cost of painting its outer surface at the rate of 5 paise/`cm^(2)`.

A

Rs. 158.25

B

Rs. 172.45

C

Rs. 168.30

D

Rs. 164.20

Text Solution

Verified by Experts

The correct Answer is:
C
CSA of a bucket `=pi l (R+r).`
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