Question

sound Travels at 335 M per second in air find its speed in kilometre per hour.

Answer 1

Let's find what 1km/hr is in m/s

1km/hr = 1000m/3600 sec

=> 1km/hr = 5/18 m/s


Here given to convert 335m/s to km/hr

Since, 5/18 m/s = 1 km/hr

=> 1 m/s = 1 ÷ 5/18

=> 1 m/s = 18/5 km/hr

=> 335 m/s = 335 × 18/5 m/s

=> 335 m/s = 1206 km/hr


Answer :- 1206 km/hr


Alternatively, Second method

335m = 0.335 km

1 s = 1/3600 hr

=> 335m/s = 0.335 ÷ 1/3600 km/hr

=> 335 m/s = 0.335 × 3600

=> 335 m/s = 1206 km/hr



You may follow any method

Answer 2

Question :

sound Travels at 335 M per second in air find its speed in kilometre per hour.

Answer :

For converting it into km/h , do multiply it by 18/5 .

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