Answer:
71.052 m/s
Explanation:
It took 3.8 seconds for sound to travel a distance of 270 m
Speed = Distance / Time
[tex]\text{Speed}=\frac{270}{3.8}\\\Rightarrow \text{Speed}=71.052\ m/s[/tex]
Assuming that the officials do not move and are standing at the same place the speed of sound that day was 71.052 m/s.
The speed of sound in air depends on the temperature of the air. Lower the temperature lower is the speed of sound in the medium.
