CAT 2018 Set-1 | Question: 57

Question

Fuel contamination levels at each of $20$ petrol pumps $\text{P1, P2}, \dots , \text{P20}$ were recorded as either high, medium, or low.

1. Contamination levels at three pumps among $\text{P1 – P5}$ were recorded as high.
2. $\text{P6}$ was the only pump among $\text{P1 – P10}$ where the contamination level was recorded as low.
3. $\text{P7}$ and $\text{P8}$ were the only two consecutively numbered pumps where the same levels of contamination were recorded.
4. High contamination levels were not recorded at any of the pumps $\text{P16 – P20}$.
5. The number of pumps where high contamination levels were recorded was twice the number of pumps where low contamination levels were recorded.

If the contamination level at $\text{P11}$ was recorded as low, then which of the following MUST be true?

• A. The contamination level at $\text{P12}$ was recorded as high.
• B. The contamination level at $\text{P14}$ was recorded as medium.
• C. The contamination level at $\text{P15}$ was recorded as medium.
• D. The contamination level at $\text{P18}$ was recorded as low.