Question

A car travels a distance of 25km in 30 minutes.find the speed of the car in km/hr and m/s?​

Answer 1

Answer:

speed=distance/time

so,

s=25/30

but in km/hr

1hr=60min

1min=1/60hr

so,30min=30/60=1/2hr

s=25km/(1/2)hr=50km/hr

and 1km=1,000m=>25km=25,000m

1min=60sec=>30min=1800sec

s=25,000m/1800sec=13.88=14m/sec

Explanation:

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