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0. Afraction is equivalent to 5/8 Its denominator and numerator add upto 9L What is the difference between the denominator and numerator of this fraction?

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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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