Question

how much salt must be added to 60 liters of a 20%solution of salt to increase it to a 40% solution of salt

Answer 1

ANSWER

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ORIGINAL AMOUNT OF SALT IN SOLUTION = 20% of 60 litres

= 12 litres

AMOUNT REQUIRED =

40% OF SOLUTION

=> 24 litres

SO AMOUNT TO BE ADDED = 12 LITRES

OR DOUBLE THE ORIGINAL AMOUNT

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