Engineering Board Exam Reviewer · Number & Digit Problems · medium
The denominator of a certain fraction is three more than twice the numerator. If 7 is added to both terms of the fraction, the resulting fraction is 3/5. Find the original fraction.
- 8/5
- 13/5
- 5/13
- 3/5
Answer
C. 5/13
Solution
Let numerator=n, denominator=2n+3. n+7/2n+10=3/5 gives n=5, so the denominator is 13. The original fraction is 5/13.
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