Please help me. I have a lot of questions. 1. A train takes 55 seconds to pass through a tunnel that is 990 m long. It takes another 35 seconds to cross a bridge that is 630 m long. What is the speed of the train? 2. Mr. Trump drove from Town A to Town B at a constant speed of 50 kph. He then drove back to Town A at a constant speed of 80 kph. The total time taken for the whole journey was 6.5 hours. Find the distance between the two towns. 3. Angie and Belle cycle from Town A to Town B that is 50 km way. Upon arrival, Angie makes a U- turn and cycles back to Town A. She meets Belle 6 km from Town B. Given that Angie can cycle 3 km more than Belle in 1 hour, at what speed is Belle cycling? 4. Train A and Train B travel towards each other along a parallel track. Their speeds are 18 m/s and 14 m/s respectively. A commuter on Train A observes that Train B takes 6 seconds to pass him completely. How long is the Train B?
