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

Out of 1900 km,Vishal travelled some distance by bus and some by aeroplane. Bus travels with average speed 60km/hr and the average speed of aeroplane is 700 km/hr.It takes 5 hours to complete the journey. Find the distance travelled by Vishal in bus.

A car takes 4 hours to cover a certain distance at the speed of 30km/h. If the speed of the car is increased, will it take more or less time to cover the same distance ?

The speed of a car is 60 (km)/(hour) . Find the distance covered by the car in 10 minutes,

Solve the following problems using two variables: A boat takes 6 hours to travel 36 km downstream and 24 kmupstream . It takes 9 hours to travel 48 km downstream and 40 km upstream . Find the speed of the stream and that of boat in still water.

Solve the following problems : The distance between Akola and Bhusaval is 168 km. An express train takes 1 hour less than passenger train to cover that distance . Find the average speed of each train, if the average speed of the express train is more by 14 km/h than the speed of the passenger train.

Solve the following problems: A passenger train takes 2 hours more than an express train to travel a distance of 240 km . The speed of the express train is more than that of passenger train by 20 km/h. Find the speed of both the trains.

A car with a uniform speed travels a distance of 165 km in 3 hours. At that same speed, how far will it travel in 8 hours ?

Solve the following examples: (numerical problems) A person travels a distance of 72 km in 4 hours. Calculate the average speed in m/s .

A train covers the first half of the distance between two stations at the speed of 40 km h^-1 and the other half 60 km h^-1 . Its average speed is

Solve the following : A car running at a certain speed covers a distance of 48 km using 3 litres of petrol. How much distance will it cover using 4.5 litres of petrol at the same speed ?