If numerator of a fraction is decreased by 10% and the denominator is increased by 22%. The value of new fraction becomes 117/122. Find the original fraction.
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Correct answer: C
Explanation
The correct answer is option 3 i.e. .
Let the original fraction is x/y
According to question
[x - 10% of x]/[y + 22% of y] = 117/122
⇒ (90x/100)/(122y/100) = 117/122
⇒ 90x/122y = 117/122
⇒ x/y = (117 × 122)/(122 × 90)
⇒ x/y = 13/10