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If the numerator of a fraction is increased by 250% and the denominator is increased by 400%. The resultant fraction is $$\frac{7}{19}$$. What is the original fraction ?

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If the numerator of a fraction is increased by 250% and the denominator is increased by 400%. The resultant fraction is $$\frac{7}{19}$$. What is the original fraction ?
1). $$\frac{10}{19}$$
2). $$\frac{5}{9}$$
3). $$\frac{9}{5}$$
4). $$\frac{19}{5}$$


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2 answers

2 vote
Answered by on | Votes 2 |
Solution

Let the two numbers be a,b

We have the new fraction as (a+2.5a)/b+4b=7/19;

35a/50b=7/19;

After simplification we get 10:19 As the answer.

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1 vote
Answered by on | Votes 1 |
Solution

Let the two numbers be a,b

We have the new fraction as (a+2.5a)/b+4b=7/19;

35a/50b=7/19;

After simplification we get 10:19 As the answer.




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