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Q: In x litres of a solutions of acid and water, acid is 62.5%. When 12 litres of acid is added to the solution, the ratio of acid and water in the resulting solution becomes 13:7. What is the value of x?
  • A. 184
  • B. 186
  • C. 148
  • D. 168
Correct Answer: Option D -
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Explanations:

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