Answer:
344.6 m/s
Explanation:
Speed of sound, v = 0.214 miles per second
The relation between the unit of distance mile and the unit of distance km is given in the question.
0.621 mile = 1 km
As we know that 1 km = 1000 m
So, 0.621 mile = 1000 m
1 mile = 1000 / 0.621 m = 1610.3 m
0.214 miles = 1610.3 x 0.214 = 344.6 m
So, the speed of sound in metre per second is 344.6 m/s.
