A hemispherical bowl made of brass has inner diameter 10.5 cm. Find the cost of tin-plating it on the inside at the rate of ₹ 16 per 100 cm².

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A hemispherical bowl made of brass has an inner diameter 10.5 cm. Find the cost of tin-planting it on the inside at the rate of ₹32 per 100 cm².

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