Xiao Xin's home and school are 290 meters apart. One day, he walked 50 meters to school and found that he forgot to wear his school uniform. He put it on at home and then went to school. So how many meters did he walk from home to school?
On a straight highway, Xiaoming and Xiaogang ride bicycles from A and B, which are 400 meters apart. Xiaoming walks 240 meters per minute, and Xiaogang walks 160 meters per minute. If you keep going at this speed. Will they meet? If you think you won't meet, please give reasons; If you think you will meet, ask to meet in a few minutes.
4. The distance between Party A and Party B is 480 kilometers, and the bus and truck leave the two places at the same time and drive in opposite directions. Four hours later, the distance between the two cars is still 80 kilometers. It is known that trucks travel 53 kilometers per hour. How many kilometers does this bus travel per hour?
5. Two cars, A and B, drive in opposite directions from two places at the same time. Car A travels 45 kilometers per hour and car B travels 42 kilometers per hour. Two cars meet at the midpoint 12km. How many hours passed after the two cars left at the same time? How many kilometers are the two places apart?