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

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

1). 664 m/s
2). 664 km/s
3). 332 m/s
4). 334 km/s

---

Join Telegram Group

Answer This Question
Name:
Email:
Answer :
Sum of (4+5)
Submit:

Other Questions

1. A train is moving with a speed of 360 km/hr. Its speed in m/sec is

2. A locomotive driver travelling at 81 km/hr finds a signal 280 metres ahead of him indicating that he should stop. He instantly applies brakes to stop the train. The train retards uniformly and stops 10 metres before the signal post. What time did he take to stop the train?

3. A train 150 metres long is running at a speed of 15 metres per second. In how much time (in seconds) it will cross a bridge of 300 metre long?

4. From point P, at 6:30 pm, a train starts moving towards Q with the speed of 40 km/hr. Another train starts moving from point Q at 7:30 p.m. towards point P at the speed of 60 km/hr. Both of them meet at 11:30 p.m. at point R. What is the ratio of PR and QR?

5. At the distance of 45 km from the shore, a hole is found in the ship which supply 4¼ tonnes of water in 15 min. Ship contains the extraction pump which remove the water from the ship at the rate of 12 tonnes/hr. 60 tonnes of water would sink it. The average speed of sailing to reach the shore just before sink is

6. P and Q are two points along the flow of a river. R is midpoint of  line joining P and Q. Between P and R, speed of river is 2 km/hr. But just after R, speed of river becomes 4 km/hr till Q. The water is flowing from P to Q. The speed of boat in still water is 14 km/hr. If the boat takes 8 hours to cover distance P and Q, then find the distance between P and Q.

7. The speed of boat during the climbing against the flow is 20 km/h and speed of flow is 7 km/hr. The speed of flow in downstream is ……. km/h.

8. Two trains A and B are running on parallel tracks in same direction. Length of train A is twice that of train B. Both trains take an equal amount of time to cross a pole individually. If speed of train B is 60 km/hr and its length is 400 metres, then how much time will train A take to completely overtake train B?

9. A truck covers a distance of 1925 km in 35 hours. What is the average speed of the truck?

10. A train 400 meters long is moving at a speed of 20 m/s. Time taken to cross a bridge of 100 meters by the train is –