Solve the following problems using two variables :
Some part of a journey of 780 km was made by car with a speed of 60 km/h and the remaining journey was made by train with a speed of 100 km/h . If total required was 9 hours . Find the time taken by train and distance covered by train .

Some part of journey of 555 km was completed by a car with speed 60 km/hr. Then the speed is increased by 15 km/hr and the journey is completed. If it takes 8 hours to reach, find the time taken and distance covered by 60 km/hr.

During a journey of 80 km a train covers first 60km with a speed of 40 km/h and completes the remaining distance with a speed of 20 km/h. What is the average speed of the train during the whole journey?

A train moving at a constant speed covers distance of 90 km in 2 hours. Find the time taken by the train to cover a distance of 540 km at the same speed.

Solve the following problrms using two variables: Out of 555 km , Vishal travelled certain distance by bus and the remaining distance by car. Bus travels with an average speed of 60 km/h and the average speed of the car is 75 km/h. He takes total 8 hours to complete the journey . Find the distance

A bus covers the first 10 km of its journey at an average speed of 40 km/h and the remaining 45 km at an speed of 60 km/h. The average speed of the bus for its total journey is

A train covers a distance of 200 km with a speed of 10 km/h. What time is taken by the train to cover this distance?

A bus covers the first 10km of its journey at an average speed of 40 km/h and the remaining 45 km at an speed of 60 km/h. The average speed of the bus for its total journey is

A train is moving at a speed of 55 (1)/(5) km/h. The train travels at the same speed for 6 hours 40 minutes. What is the distance covered by the train?