Discussion of Question with ID = 100 under Volume-and-Surface-Areas

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An iron tank 2 m × 3 m is filled with water upto a height of 2 m. What surface area of the tank is at a higher risk of corrosion?


26 cu. m.


28 cu. m.


24 cu. m.


30 cu. m.

Ans: a

If L, B and H are the dimensions of the water column, then the wet area is 2(BH + LH) + LB = 2 × (3 × 2 + 2 × 2) + 2 × 3. The result is 26 cu. m.

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