Question

A student accidentally poured 2 liters of 20% acid solution into a container having 10 liters of 15% acid solution. What is the concentration of the new solution?

Answer 1

Almost 16%

Explanation:

Your equation:
`(2*0.20)+(10*0.15)=12*x`

12 liters is the final volume and x is your final percentage.

If you solve the equation, you will get x:

`x=(0.4+1.5)/12`

`x=0.158`

Or `x=16%` (almost 16%)