Discussion

Explanation:

Let the inner radius be r meter. Capacity of tank = (1 m3 = 1 kilolitre)

From statement A, since r ≥ 4m

∴ Capacity of tank > 256 m3

Since the capacity needed is more than 256 m3 statement A is insufficient.

From statement B,

Volume of the material of tank = mass/density = 30000kg/(3 gm/cc) = 10,000,000 cm3 = 10 m3

Hence the inner volume of tank = Outer volume – Volume of material of tank

Therefore, we can say that the tank capacity is adequate.

Hence, option (b).

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