Question

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?

Answer 1

Answer:

20liters

Step-by-step explanation:

take the amount of alcohol as X

20+X/60+x*100=50

if you simply you get

50*X=1000

therefore

X=20

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Answer 2

Answer:

20 L

Step-by-step explanation:

Let xL alcohol must be added to produce 50 %.Now alcohol at last is equal to 50% of total solution.Therefore 20 L of alcohol must be added in 60 L solution to get 50% alcohol in the solution.