Question

Which of the following is closest to the speed of sound in air at sea level ?
A.3 m/s
B.30 m/s
C.330 m/s
D.3300 m/s

Answer 1

C. 330 m/s is the correct answer.
Hope this helps~

Answer 2

Answer:

The correct answer is option C.

Explanation:

The speed of the sound in the air at sea level is given as 1238 km/h.

1 km = 1000 m

1 hour = 3600 seconds

Speed  of the sound in air at sea level can be written in meter per second as:

$1238\times \frac{1000 m}{3600 s}=343.88 m/s\approx 343 m/s$

The nearest value of speed of sound from the given option is 330 m/s that option C.