A problem by MUHAMMAD ADNAN YASIR
ADNAN , USMAN, IMRAN ,ARSLAN and ZEESHAN are five friends.They decided to go for an adventure.They have only one torch with them.One night they reached a pull where it was stated on sign board that only two men can go in one time.All friends take different time to cross the pull. ADNAN takes 1 min, USMAN takes 3 min IMRAN 6 min ARSLAN 8 min and ZEESHAN 12 min.They should go in pairs along with torch(because there is so much dark) and one had to return because of torch. What is the minimum time(mins) in which they can cross the pull?
The answer is 29.
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1 solution
Answer
= ceiling[1,3] + 1 + ceiling[12,8] + 3 + ceiling[1,6] + 1 + ceiling[1,3]
= 3 + 1 + 12 + 3 + 6 + 1 + 3
= 29 minutes