Question

How much salt must be added to 60 kg of a 20% solution of salt to increase it to a 40% solution of salt ​

Answer 1

Answer:

20 kg

Step-by-step explanation:

let it be ' x kg '

20% of 60 + x = 40% of ( 60 + x )

12 + x = 24 + 2x/5

3x/5 = 12 => x = 20 kg

Answer 2

Answer:

20kg

Step-by-step explanation:

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