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The internal and external diameters of a hollow hemispherical vessel are 24 cm and 25 cm respectively. If the cost for painting 1 cm' of the surface area is Rs. 0.05 then the total cost of painting the vessel all over is : (1) Rs 90.05 (2) Rs 96.28 (3) Rs 95.20 (4) Rs 96.29 |
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Answer» Correct option is (2) Rs 96.28 |
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