Percentage Practice Test 2 with solutions

Question : 25 of 40

Marks: +1, -0

If the numerator of a fraction is increased by 250% and the denominator is increased by 300%, the resultant fraction is 7/9. What is the original fraction?

$7/ 8$
$7 /11$
$8/ 9$
$8/ 11$

Validate

Solution:

Let the fraction be

x/ y

; then

{x+250/100x}/{y+300/100y}=7/9

⇒{7x}/{2×4y}=7/9

∴x/y=7/9×8/7=8/9

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