1.

In a fraction, if the numerator is increased by 20% and the denominator is decreased by 40%, what will be the ratio of the first fraction to the second ?

Answer»

1 : 2



Let the ORIGINAL FRACTION be X/y.
Now x1 = x + x 20/100 = x + x/5 = 6x/5y
1 = y - y x 40/100 = y - 2y/5 = 3y/5
∴ x1/y1 = 6x/5 x 5/3y = 2x/y
∴ Reqd RATIO = x/y / 2x/y = x/y x y/2x = 1/2



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