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Q: The population of a town increased by 10% and 20% in two successive years, but decreased by 25% in the third year. Find the ratio of the population in the third year to that of 3 year ago.
  • A. 100 : 99
  • B. 99 : 100
  • C. 2 : 1
  • D. 1 : 1
Correct Answer: Option B -
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Explanations:

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