David's average driving speed for 5 hours journey was 55 km/h. During his first two hours of journey,
he drove at 60 km/h, and last two hours he drove at 50 km/h. What was his speed for the fifth hour of
the journey?
Answers
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Step-by-step explanation:
Average Speed is 55 km/h, Combined Time is 5 hours, Combined Distance is 275 km.
2 hours x Speed is 60 km/h, Time is 2 hours, Distance is 120 km.
2 hours x Speed is 50 km/h, Time is 2 hours, Distance is 100 km.
Combined Distance is 220 km , C. Time is 4 hours, Average Speed is 55 km/h is for above times only & does not include 5th hour.
Answer : For the 5th Hour : Distance 55 km, Time is 1 hour, “Speed is 55 km/h”
Total Combined Distances is 275 km. Total Times is 5 hours
Average Speed of complete 5 hour Journey is 55 km/h.
I think u Understand the answer.
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