If it takes 5 men 20 hours to brick a house, How long will it take 2 men to do the job if they work at the same rate? A) 35 hours B) 40 hours C) 50 hours D) 75 hours

If 5 men accomplished a job in29 hrs, so one man alone will need five times more to do that is 5x20 = 100 hrs & if 2 men are hired for the same Job, they will completed in100/2 = 50Hrs

(Te number of men in inversely proportional to the number of days)