A 25-ounce solution is 20% alcohol. If 50 ounces of

water are added to it, what percent of the new solution is

alcohol?

20% = 1/5

1/5 out of 25 = 1/5*25/1=25/5=5

So 5oz - amount of ounces of alcohol in solution.

Solution is then 5oz alcohol + 20oz water = 25oz

Add 50oz water

25 (already existing) + 50 = 75oz New solution

Still only 5oz of alcohol

5/75 = 0.06666

Convert to percentage by multiplying result with 100.

Answer: 6.666%