A gun is fired at a distance of 6.64 km away from Ram. He hears the sound 20 seconds late. Then the speed of the sound is
The driver of a car sees a bus 25 m ahead of him, After 16s, the bus is 55 m behind. If the speed of the car is 30 km/hr, what is the speed of the bus? Neglect the lengths of car and the bus
1). 16 km/hr
2). 22 km/hr
3). 24 km/hr
4). 12 km/hr
A train crosses a running man who is running at a speed of 7 km/hr in the same direction in which the train is going in 15 seconds. The length of the train is 150m.Calculate speed of the train?
A boat covers 143 km upstream in 13 hours and the same distance downstream in 11 hours. What is the speed (in km/hr) of the boat in still water?
1). 10
2). 12
3). 14
4). 8
A 60 m long ship is moving at a speed of 30 km/hr alongside a river shore. A 210 m long goods train is running on the shore at a speed of 78 km/hr. If the train is coming towards the ship, in how much time will the train cross a man who is sitting on the ship?
1). 5 sec
2). 7 sec
3). 9 sec
4). 11 sec