A hemispherical bowls has 3.5cm radiu...

A hemispherical bowls has 3.5cm radius. It is to be painted inside as well as outside. The cost of painting it at the rate of Rs 5 per 10sq. cm will be (a) Rs 77 (b) Rs 100 (c) Rs 175 (d) Rs 50

A

50

B

81

C

56

D

77

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The correct Answer is:

D

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