Solution Y is 30 percent liquid X and 70 percent water : Crackverbal Support

Solution Y is 30 percent liquid X and 70 percent water Print

Modified on: Wed, 13 Oct, 2021 at 11:32 AM

Concept: The question tests on Percentage and comprehension of question and its inputs.

Solution Y:

Liquid X =30% AND Water = 70%

8 Kg of Solution Y is taken and 2kg of Water evaporates from this.

=>8kg of Y has 30%of 8kg=2.4 kg of liquid X originally in it

2kg of Y that evaporated had 30% of 2kg or 0.6kg of liquid X in it.

The same is added back=>0.6 kg of liquid X that evaporated is added back to Y

Q. stem- We have to calculate the new percentage of liquid X in this solution(originally it was 30%)

This should be the "new" weight of liquid X in the solution/ Total weight of the solution *100

=2.4+0.6 / 8 =3/8 *100 = 37.5% (option c)

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Solution Y is 30 percent liquid X and 70 percent water Print