how much salt must be added to a 60 litres of a 20% solution of salt to increase it to a 40%solution of salt?
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Apply mixture and Allegation concept:
20% salt 100%salt
40% salt
(100-40)60 : 20(40-20)
3:1 (ratio of 20% salt solution to pure salt)
Therefore,
20x(3:1)
60:20
Clearly 20 lit of pure salt must be added in 20% salt solution to get 40% salt solution.
20% salt 100%salt
40% salt
(100-40)60 : 20(40-20)
3:1 (ratio of 20% salt solution to pure salt)
Therefore,
20x(3:1)
60:20
Clearly 20 lit of pure salt must be added in 20% salt solution to get 40% salt solution.
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