q76
- Option : B
- Explanation : Let the fraction be 5x/7y Now, sum of numerator and denominator = 91 i.e 5x + 8y = 91 => 13x = 91 => x = 7 ∴ Numerator = 35 and denominator = 56 :. Difference of denominator and numerator = 56 - 35 = 21
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