Percentage Practice Test 1 with solutions

Question : 7 of 40

Marks: +1, -0

If the numerator of a fraction is increased by 200% and the denominator of the fraction is increased by 150%, then the resultant fraction is

7 /10

. What is the original fraction?

Solution:

Let the fraction be

x/y

; then

{x+200/100×x}/{y+150/100×y}=7/10

⇒{3x×2}/{5y}=7/10

∴x/y=7/10×5/6=7/12

Go to Question:

Prev Question

Next Question