A mixture of 100 L contains kerosene and turpentine oil in the ratio 3:2. What is the <strong>MINIMUM</strong> quantity of kerosene in litres (whole number) that should be mixed in the mixture so that the resulting mixture has 20% of kerosene?
- A. 10 L
- B. 20 L
- C. 25 L
- D. Not possible ✓
Correct Answer: D. Not possible
Explanation
The initial 100 L mixture contains 60 L (60%) kerosene. Adding more kerosene will only increase the percentage of kerosene. Therefore, making it 20% by adding kerosene is impossible.
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