Five roommates Rohan, Saleem, Tanmay, Umesh, and Vikas each do only one housekeeping task: mopping, sweeping, laundry, vacuuming, or dusting: And only one day a week, Monday through Friday.

(i) Vikas does not vacuum and does not do his task on Tuesday.

(ii) Saleem does the dusting, and does not do it on Monday or Friday.

(iii) The mopping is done on Thursday.

(iv) Tanmay does his task, which is not vacuuming, on Wednesday.

(v) The laundry is done on Friday, and not by Umesh.

(vi) Rohan does his task on Monday.