8 out of 10 dentist prefer Crest toothpaste. What is the ratio of dentist who do not prefer crest to those that do?

Question

8 out of 10 dentist prefer Crest toothpaste. What is the ratio of dentist who do not prefer crest to those that do?

 

Answer 1

If 8 out of 10 prefer Crest, then 2 out of 10 do not.  The ratio of those who do not prefer Crest (2) to those that do prefer Crest (8) is 2/8 or 1 out of 4.