Question

An experiment requires 500 mL. One of the ingredients to be mixed with 1,000 mL of another. How many liters is the solution

Answer 1

500+1,00=1,500
1,000 mL=1 L
1,500/1,000=1.5
1,5 Liters in the solution.

Answer 2

1.5 liters all together!

Hope that helps!
-procklownyt