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:for short trick:required salt=60*(40-20)/(100-40)=20kg.

for explanation:in 60kg, 20% is salt i.e. 60*20/100=12kg

for being 40% the ratio would be (12+x)/(60+x)=40/100 where x is the required amount on solving the aove equation we get x=20kg.

Step-by-step explanation:

Answer 2

Answer:

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