The recurring decimal representation 1.272727... is equivalent to

The recurring decimal representation 1.272727... is equivalent to
  1. 13/11
  2. 14/11
  3. 127/99
  4. 137/99

Solution

Let $y = 1.272727...$ The recurring part is '27'. $y = 1 + 0.\overline{27} = 1 + \dfrac{27}{99} = 1 + \dfrac{3}{11} = \dfrac{14}{11}$.

Asked in: CSAT 2020

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