If 2/3rd of the workers in an office are non smokers, what is the ratio of smokers to non-smokers?

If 2/3rd of the workers in an office are non smokers, what is the ratio of smokers to non-smokers? Correct Answer 1 : 2

No smoker = 2/3 Smoker = 1/3 (1/3) / ( 2/3) = 1/3 × 3/2 = 1 : 2

Related Questions

Statements : All artists are smokers. Some smokers are drunkards.

Conclusions :
I. All smokers are artists.
II. Some drunkards are not smokers.