Question

a car travels a distance of 15 km in 20 min find the speed of the car in km/h m/s

with solutions ​

Answer 1

Answer:

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.

Answer 2

$speed \: = \: \frac{total \: distance \: covered}{time \: taken}$

Total distance covered = 15km

Time taken = 20 min or 20÷ 60h = 0.333hours

To find the speed of car in km/h:-

$speed = \: \frac{15}{0.333}$

Speed = 45km/h

To find the speed of car in m/s:-

$speed \: = \: \frac{45 \times 1000}{60 \times 60}$

Speed = 12.5m/s