Multiple choice

The numerator of a fraction is decreased by 25% and the denominator is increased by 150%. If the new fraction is 9/20, then find the original fraction.

  1. 3/2

  2. 9/10

  3. 1/6

  4. 3/40

  5. None of these
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A Correct answer
Explanation

Let the original fraction be n/p. Then, according to the question, (0.75*n)/(2.5*p) = 9/20 n/p = 3/2

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