Your bus journey to work takes one hour. You work for two hours, then take the bus home from the bus stop next to where you work .The bus timetables to and from work are shown below.
You want to make the time between getting on the bus to work and getting off the bus from work as short as possible. Which bus should you take to work in order to achieve this ?
Please choose the departure time of this bus.
Rule same as last time : leave your answer below , the first 10 correct will get 0.1 steem reward. End before the next puzzle .