Bob has 53 cows and spends 10 min each day petting each cow.This is 530 minutes one day which is 3710 minutes in a week. 200 minutes twice a week is 400 minutes. 53 times extra 5 minutes is 265 everyday times 7 days a week which is 1855.
3710+400+1855=5965 minutes
99 hours and 25 minutes
Bob sure loves his cows...