First find how many units of solution there is:
500* 2% = 500(.02) = 10 units
You need 10 units of solution in 'x' units of a 10% solution.
x*10% = 0.1x = 10 units -----> x = 10/0.1 = 100
100 units are needed
The correct answer is B because 6 needs to be included.
All you have to do is find the relationships between the top and bottom and then find how they all r in common
There are many possible answers.
10:12
15:18
20:24
25:30
30:36
