Answer:
8.33
Explanation:
He has to be at work by 10:30, but it takes 20 mins to walk
So, 10:30-20 minutes=10:10
We then look at the arrival time closest to this, which would mean he would arrive at 10.06.
trace this back the bus would gett him at 8:38, but its a 5min walk.
8:38-5 minutes+8.33
hope this helps :)