A gun is fired at a distance of 1.35 km from Mukul. She hears the sound after three seconds. The speed (in m/s) at which sound travels is:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. 450.
Distance = 1.35 km = 1350 meters
Time = 3 seconds
Speed = Distance / Time = 1350 ÷ 3 = 450 m/s