A cylindrical tank has a capacity of 6160 m³. Find its depth, if its radius is 14 m. Also, find the cost of painting its curved surface at ₹ 30 per m².
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Question

A cylindrical tank has a capacity of 6160 m3. Find its depth, if its radius is 14 m. Also, find the cost of painting its curved surface at ₹ 30 per m2.

KnowledgeBoat · Accepted Answer

Let radius (r) = 14 m and depth or height = h meters By formula, Volume of cylinder = πr2h Curved surface area of cylinder = 2πrh Given, the cost of painting its curved surface is ₹ 30 per m2. ⇒ 880 × 30 = ₹ 26,400. Hence, depth of the cylindrical tank is 10 m and the cost of painting its curved surface is ₹ 26,400.

Mathematics

A cylindrical tank has a capacity of 6160 m³. Find its depth, if its radius is 14 m. Also, find the cost of painting its curved surface at ₹ 30 per m².

Mensuration

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