How much of water is to be added to 75 ml. of alcohol so that the mixture contains 25% of alcohol?
Question and options
How much of water is to be added to 75 ml. of alcohol so that the mixture contains 25% of alcohol?
- 100 ml
- 225 ml
- 250 ml
- 125 ml
Answer and explanation
Correct answer: B - 225 ml
If 75 ml of alcohol is to be 25% of the mixture, the total must be 75 / 0.25 = 300 ml. Water to add = 300 - 75 = 225 ml.
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CUSAT CAT LLM
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