Question

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

Answer 1

Step-by-step explanation:

original solution is of 60 litre with 20% salt in it

x*1.2 = 60

x = 60/1.2 = 50 ltr

salt is 60-50 = 10 ltr

40% is 20 ltr , additional 10 ltr is required