Problema Solution
How many kilograms of pure salt must be added to 22kg of a 10% salt solution to obtain a 25% salt solution?
Answer provided by our tutors
From the question, we can write:
.10(22)+1n=.25(n+22)
Where .10, 1, and .25 are the fractional forms of the percentages 10, 100 (for pure salt), and 25. '22', 'n', and 'n+22' are the respective amounts of each of these solutions.
Using Algebrator to solve for n, we get:
n=4.4kg
This iss the amount of pure salt that must be added.