Question

A 5 liter jug contains 4 liters of a salt water solution that is 15 percent salt. If 1.5 litres of the solution spills out of the jug, and the jug is then filled to capacity with water, approximately what percent of the resulting solution in the jug is salt?

Answer 1

Step-by-step explanation:

15%

After spill,

The amount of salt = (3/20)*2.5L

= 3/8 L

Now, salt = [(3/8)/5] * 100

= (3/40)*100

= 7.5 %

Answer 2

Given:Actual salt water = 4 litres (with 15% salt in it)Spilled out = 1.5 litres (with 15% salt in it)

Remaining is = 2.5 litres (with 15% salt in it)Now filled with pure water = 2.5 litres (with 0% salt)

Solution:

So, new quantity = 5 litres Water quantity doubles and

hence, salt must dilute into half

Therefore, salt % is 7.5%