A cleaning solution is made by mixing concentrated cleaner with water in a ratio of 1 part cleaner to 5 parts water. If you use 4 parts of concentrated cleaner, how much water should you use to maintain the same ratio?
Exactly 5 parts
15 parts more than the amount of water used with 1 part cleaner
4 times the amount of concentrated cleaner used with 1 part water
5 times the amount of concentrated cleaner used in this batch
