It costs Rs. 2200 to paint outer surface of a closed cylindrical tank of height 6.5 m , painting at Rs. 10 per sq. m. The volume of kerosene that can be filled in this tank is

350 m³

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450 m³

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300 m³

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250 m³

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Solution

The correct option is D
250 m³

Area to be painted = 2πr(r + h)= 220 cm²

Given h=6.5 m

=> r = 3.5 m

=> Volume of tank = π r² h= 250 m³

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It costs Rs. 2200 to paint outer surface of a closed cylindrical tank of height 6.5 m , painting at Rs. 10 per sq. m. The volume of kerosene that can be filled in this tank is

The correct option is D 250 m3Area to be painted = 2πr(r + h)= 220 cm2 Given h=6.5 m => r = 3.5 m => Volume of tank = π r2 h= 250 m3

The correct option is D
250 m³

Area to be painted = 2πr(r + h)= 220 cm²

Given h=6.5 m

=> r = 3.5 m

=> Volume of tank = π r² h= 250 m³