Answer:
Explanation:
Given:
Time = t = 20 mins = 20/60 = 0.33 hrs
Distance = S = 15 km
Required:
Speed = v = ?
Formula:
v = S/t
Solution:
v = 15 / 0.33
v = 45 km/hr
1 hour = 60 minutes.
20 minutes / 60 minutes = 1/3 of an hour.
20 minutes x 3 = 60 minutes = 1 hour
15 km in 20 minutes x 3 = 45 km per hour
Speed = 45 km/hr.
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