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If the numerator of a fraction is increased by 400% and the denominator is increased by 500%, the resultant fraction is 10/21 . What was th…

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If the numerator of a fraction is increased by 400% and the denominator is increased by 500%, the resultant fraction is 10/21 . What was the original fraction ?
  • A5/12
  • B8/13
  • C17/14
  • D4/7
Answer not set
0
CCommunity
Solution
Let the original fraction be $\frac{x}{y}$
Acc to ques,
=> $\frac{x + \frac{400}{100} * x}{y + \frac{500}{100} * y} = \frac{10}{21}$
=> $\frac{5x}{6y} = \frac{10}{21}$
=> $\frac{x}{y} = \frac{10}{21} \times \frac{6}{5}$
=> $\frac{x}{y} = \frac{4}{7}$
0
CCommunity
Solution
Let the original fraction be $\frac{x}{y}$
Acc to ques,
=> $\frac{x + \frac{400}{100} * x}{y + \frac{500}{100} * y} = \frac{10}{21}$
=> $\frac{5x}{6y} = \frac{10}{21}$
=> $\frac{x}{y} = \frac{10}{21} \times \frac{6}{5}$
=> $\frac{x}{y} = \frac{4}{7}$