Question

A boy shouts will standing infront of hill at a distance of 800m the hears the echo of his shouts after 4.8second. Find the speed of the sound

Answer 1

Echo heard after 4.8 second

so the actual sound struck the hill at 4.8/2=2.4 second

distance=800m

so speed of sound =800/2.4=333.34m/s