Question

The speed of sound is approximately 1.2 × 103 km/h. How long does it take for sound to travel 7.2 × 102 km? Write the answer in minutes.

(Please show your work)

Answer 1

Time = distance
---------------
speed

= 7.2 x 10^2
--------------------
1.2 x 10^3

= 0.6 hrs = 0.6 x 60 = 36 minutes.

Hope this helps!