Question 7
Mr. Andrew's office is located in City T, while he lives in City S. Every day after
timing-off from work, he takes the same train to return to his home city. The train
station in city S is still some distance away from his home, and his wife travels
by car to the train station to pick him up. It is known that the train and his wife
arrive at the train station at the same time. One day, due to some reasons, his wife
left their house 30 minutes later than usual. Upon arriving at the train station in
City S, Andrew noticed that his wife hasn’t arrived yet so he decided to walk
home. On his way walking home, he met his wife along the way and rode the car
immediately. Upon reaching home, Andrew observed that they arrived home 22
minutes later than usual. How long, in minutes, did Andrew walk?
Station Mr. Andrew’s home
timing-off from work, he takes the same train to return to his home city. The train
station in city S is still some distance away from his home, and his wife travels
by car to the train station to pick him up. It is known that the train and his wife
arrive at the train station at the same time. One day, due to some reasons, his wife
left their house 30 minutes later than usual. Upon arriving at the train station in
City S, Andrew noticed that his wife hasn’t arrived yet so he decided to walk
home. On his way walking home, he met his wife along the way and rode the car
immediately. Upon reaching home, Andrew observed that they arrived home 22
minutes later than usual. How long, in minutes, did Andrew walk?
Station Mr. Andrew’s home