Tyler and Pearl went on a 20km bike ride that lasted for 3 hours. Because of steep hills or the trail, they walked for most of t he trip. Their walking speed was 4km/hr. Their riding speed was 12km/hr. How much time did they spend walking?
1 answer:
Answer: 1 hour
Step-by-step explanation:
Let the distance they walked be in time and the distance they walked be in time ,then
Walking speed=
Riding speed=
Also the total time taken=3 hours
∴ ...(1)
Since the total distance= 20 km
∴
Thus, the they spent 1 hour time in walking.
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Step-by-step explanation:
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