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If the numerator of a fraction is increased by 150% and the denominator of the fraction is increased by 350%, the resultant fraction is 25/51. What is the original fraction ?

31/25
15/17
14/25
11/16

Correct Answer: 15/17

Explanation:

The original fraction is $\frac{25}{51} \times \frac{350 + 100}{150 + 100}$ = 15/17.

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