A man leaves his office daily at 5pm, gets on a local train to his town, and arrives at the station at 6pm. His wife reaches there at exactly 6pm in a car, to pick him up. This is a daily routine.
On a certain day, he left the office at 4pm and forgot to inform his wife. He reached the station of his town at 5pm and started to walk towards his home. He met his wife on the way as she was coming to pick him up at the usual time. They drove back to home. That day, they reached home 20 minutes earlier than their usual time.
For how long, in minutes, did he walk?
Answer
50 Minutes
