Distance, Speed & Time (2)( Week 43 Practice) 1. In a train station, there are two tracks (A and B) going to a city. The earliest trains on both tracks leave for the city at 5:55 AM. After that the trains on track A leave for the city every 8 minutes and the trains on track B leave for the city every 13 minutes. If Rene arrives at the station at 7:50 AM, how many minutes will he have to wait for the next train? 2. Michael biked from his home to his high school at 6.2 miles per hour. When he returned home from school, using the same route, he biked at 3.8 miles per hour. If the total round trip took 20 minutes, what was the distance from his home to his school (in miles)? 4. The distance between place A and place B is 160 miles. Sofia started to drive from place A to place B at 08:00 AM. The speed during the first half of the trip was 53 mph. The speed during the second half of the trip was 27 mph. How long (in hours) did it take Sofia to get to place B from place A? 5. Two trains are driving toward each other. The faster one is driving at the speed of 27 meters per second. Its length is 160 meters. The slower one is driving at the speed of 13 meters per second. Its length is 360 meters. How many seconds will it take from the time they meet to the time they separate completely? |