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The internal and external diameters of h...

The internal and external diameters of hollow hemispherical vessel are 24 cm and 25 cm respectively. If the cost of painting `1 cm^2` of the surface area is Rs. 0.05 then the total of painting the vessel all over is :

A

Rs 90.05

B

Rs 96.28

C

Rs 95.20

D

Rs 96.29

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