Final answer:
Alfred is incorrect because the correct ratio of cleanser to the total cleaning solution is 1:4, since 1 part cleanser is mixed with 3 parts water, totaling 4 parts.
Step-by-step explanation:
Alfred is not correct. When Alfred mixes 1 part cleanser with 3 parts water to make a cleaning solution, the ratio of cleanser to the total solution should be considered. Here, for every 1 part cleanser, there are 3 parts water, making a total of 4 parts in the solution. Therefore, the ratio of cleanser to the cleaning solution should be 1:4, not 3:1. The ratio 3:1 would actually represent the proportion of water to cleanser, not the cleaning solution as a whole to cleanser.