Each question is followed by two statements I and II 1 If the question can be answered by any one of...........

Math and Mental Ability Data Sufficiency

Each question is followed by two statements, I and II.

1.If the question can be answered by any one of the statements alone, but cannot be answered by using the other statement alone.

2.If the question can be answered by using either statement alone.

3.If the question can be answered by using both the statements together, but cannot be answered by using either statement alone.

4.If the question cannot be answered even by using both statements together.

A small storage tank is spherical in shape. What is the storage volume of the tank?

I. The wall thickness of the tank is 1 cm.

II.When an empty spherical tank is immersed in a large tank filled with water, 20 l of water overflows from the large tank.

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Explanation:

- Statement I: The wall thickness is not enough to determine the storage volume of the tank by itself, because we do not know the total outer diameter or the inner diameter.

- Statement II: When the tank is immersed and 20 liters overflow, it indicates that the volume of the tank is 20 liters. This gives us the exact volume of the tank. Therefore, Statement II alone is sufficient to determine the volume.

- Using Both Statements Together: Since Statement II already gives us the information needed, there's no need to use both together; Statement I is redundant.

- Correct Option: Statement II alone is sufficient to answer the question. This corresponds to option 1.

- Conclusion: The correct answer is option 1.