Problema Solution
In a chemistry class,2 liters of a 4% silver iodide solution must be mixed with a 10% solution to get a 6% solution. How many liters of the 10% solution are needed?
Answer provided by our tutors
4%*2+ 10%*x = 6%(x+2)
on solving we get x = 1
we need 1 liter of 10% solution