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      Question

      A complex fraction evolves into 25/21 when 25% of the

      numerator is added to the numerator, and simultaneously, 23% of the denominator is subtracted from the denominator. Calculate the original fraction.
      A 11/15 Correct Answer Incorrect Answer
      B 12/15 Correct Answer Incorrect Answer
      C 9/17 Correct Answer Incorrect Answer
      D 12/7 Correct Answer Incorrect Answer
      E none of these Correct Answer Incorrect Answer

      Solution

      ATQ, Let, the fraction be a/b. (a ร— 125%):(b ร— 77%) = 25/21 125a ร— 21 = 25 ร— 77b a/b = 11/15

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