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Question
In a 120 litre of solution of Acid and water, acid is 75%. A person takes out 20 litres of this solution and added 16.2 litres of acid and 3.8 litres of water in the remaining solution. What is the percentage of water in the final solution?
Options
22
24
25
28
Solution
24
Explanation:
In 100 `"l"`,
Acid`=100xx75/100=75 l.`
water = 100 − 75 = 25`l.`
when, 16.2 `l` acid and 3.8 `l` water added,
then, water = 25 + 3.8 = 28.8 `l`.
total volume of solution,
= 100 + 16.2 + 3.8 = 120 `l`.
water %`=28.8/120xx100=24%.`
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