Identify the variation and solve : It takes 5 hours to travel from one town to the other, if the speed of the bus is 48 km/h. If the speed of the bus is reduced by 8 km/h, how much time will it take for the same travel ?

Pratik takes 8 hours to travel 36 km downstream and return to same spot. The speed of boat in still water is 12km/hr. Find the speed of the water current.

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 ?

A car with speed 60 km/h takes 8 hours to travel some distance. What should be the increase in the speed, if the same distance is to be covered in 7 1/2 hours?

A car travels 48 km in 50 minutes. How much time will it take to travel 24 km at the same speed?

Pratik travels by boat 36 km down a river and back in 8 hours. If the speed of his boat in still water is 12km/hr, find the speed of the river current.

A man travels by boat 36 km down a river and back in 8 hours. If the speed of his boat in still water is 12 km/hr, find the speed of the river current.

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.