Question

express the speed of 60 m per minute in km per hour

Answer 1

Given - Speed in m/min

Find - Speed in km/hr

Solution - Speed in km/hr is 3.6.

Converting the given distance to kilometre. As per the known fact -

1000 metre = 1 kilometre

60 metre = 60/1000 km

Converting the given time to hour. As per the known fact -

60 minutes = 1 hour

1 minute = 1/60 hour

Now, speed = (60/1000)/(1/60)

Speed = (60*60)/1000

Cancelling common zero from numerator and denominator and performing multiplication and division

Speed = 3.6 km/hr

So, the speed in km/hr is 3.6.

Answer 2

Answer:20m/

Explanation:

72km/h= 72×5/18

 = 24×5/6

 = 4×5/1

 = 20 m/