Why didn’t she get off the bus at the bus station?

How did Valli plan her bus ride? What did she find out about the bus, and how did she save up the fare?

Formulate the following problems as a pair of equations, and hence find their solutions. :- Roohi travels 300 km to her home partly by train and partly by bus. She takes 4 hours if she travels 60 km by train and the remaining by bus. If she travels 100 km by train and the remaining by bus,she takes 10minutes longer. Find the speed of the train and the bus separately

Roohi travels 300km to her home partly by train and partly by bus.She takes 4 hours if she travels 60km by train and the remaining by bus.If she travels 100km by train and the remaining by bus,she takes 10 minutes longer. Find the speed of the train and the bus separately.