**Question:**There are three bottles of water — A, B, C, whose capacities are 5 L, 3 L, and 2 L respectively. For transferring water from one bottle to another and to drain out the bottles, there exists a piping system. The flow through these pipes is computer-controlled. The computer that controls the flow through these pipes can be fed with three types of instructions, as explained below.

Instruction type | Explanation of the instruction |

Fill (X, Y) | Fill bottle labelled X from the water in bottle labelled Y, where the remaining capacity of X is less than or equal to the amount of water in Y. |

Empty (X, Y) | Empty out the water in bottle labelled X into bottle labelled Y, where the amount of water in X is less than or equal to remaining capacity of Y. |

Drain (X) | Drain out all the water contained in bottle labelled X. |

Initially, A is full with water, and B and C are empty.

After executing a sequence of three instructions, bottle A contains one litre of water. The first and the third of these instructions are shown below.

First instruction: FILL (C, A)

Third instruction: FILL (C, A)

Then which of the following statements about the instructions is true?

- The second instruction is FILL (B, A).
- The second instruction is EMPTY (C, B).
- The second instruction transfers water from B to C.
- The second instruction involves using the water in bottle A.

## CAT Quant Questions with Video Solutions

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