Question

a car travels a distance of 15km in 20minutes.find the speed of the car in (i )km h( ii ) m​

Answer 1

Explanation:

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Answer 2

Explanation:

If the car travels 15km in 20 minutes,

and 20 minutes are a third of an hour,

so the speed per hour is : (15km * 3)/(20min *

3) = 45km/60min, as 60min is an hour so it’s equal to 45km/h.

Same way an hour has 3600 seconds so the

speed for second is: (45km / 3600)/(1h /

3600) = 0.0125km/1s = 12.5m/s.

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