Question

1) There are 80 grams of salt in a 32% solution. Find the weight of the solution

2) how much water should be evaporated from a 300 grams of a 20% salt solution to get a 25% salt solution

3) salt was mixed with pure water in a 1:3 proportion. What is the percentage of salt in the new solution

4) 24 grams of salt and 16 grams of pure water were added to 160 grams of a 35% solution. What is the percentage of salt in the new solution

Answer 1

2) 60 grams

Explanation:

Equation: 300(20) = 25(300-x)

X=60

Answer 2

Weight of the solution = 250 grams

Explanation:

1) Consider the weight of solution as x grams.

32 % solution = 80 grams salt

32% of x = 80

(32/100)*x = 80

Solving for x:

x = (80*100) / 32

x = 250 grams