A gun fired at a distance of 24.3 kilometre away from him when he heard the sound after 27 seconds find the speed of sound at which it travels

speed = distance / time = 24300 meters / 27 seconds = 900 m/s

That is about three times the speed of sound in air on the earth. Baloney.
Typo ?

To find the speed of sound, we need to use the formula:

Speed = Distance / Time

In this case, the distance is the total distance traveled by the sound, which is twice the distance between the observer and the source of the sound (since the sound travels to the observer and then back to the source).

Given:
Distance = 24.3 km (or 24,300 meters)
Time = 27 seconds

Since the sound travels the total distance twice (to the observer and back), we can say that the actual distance traveled by the sound is half of 24.3 km, which is 12.15 km (or 12,150 meters).

Now, we can use the formula:

Speed = Distance / Time

Speed = 12,150 meters / 27 seconds

Calculating this gives us:

Speed = 450 meters per second

Therefore, the speed of sound is 450 meters per second.

To find the speed of sound, we can use the formula:

speed = distance / time

In this case, the distance the sound traveled is the same as the distance of 24.3 kilometers, and the time it took to reach the person's ears is 27 seconds.

Let's plug the values into the formula:

speed = 24.3 km / 27 s

To calculate the speed of sound, we need to convert the distance from kilometers to meters. Since 1 kilometer is equal to 1000 meters, the distance will be 24.3 km * 1000 m/km = 24,300 meters.

Now, we can calculate the speed:

speed = 24,300 m / 27 s

Dividing these values gives us:

speed ≈ 900 m/s

Therefore, the speed of sound is approximately 900 meters per second.