# A 60 litre solution of alcohol and water contains 20 litre of alcohol. how much alcohol must be added to produce a solution of 50% alcohol?

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by harshjaiswal

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by harshjaiswal

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The Brainliest Answer!

Let

Then alcohol in solution at last = (

Total solution at last = (60 +

Now,

⇒

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⇒ (2

⇒

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Let x L of alcohol be added so total alcohol =( 20 + x )L

total solution =( 60 + x ) L

to get 50 %

(x + 20)/(x + 60) * 100 = 50

⇒ x = 20 L

total solution =( 60 + x ) L

to get 50 %

(x + 20)/(x + 60) * 100 = 50

⇒ x = 20 L