David average driving speed for 5 hours journey was 55 kilometre per hour during his first tour of journey at 60 kilometre per hour and the last two hour Hyderabad 50 km per hour what was his speed for v r of the journey
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Average speed is 55 km/h, combined time is 5 hours, combined distance is 275 km.
• 2 hours × speed is 60 km/h, Time is 2 hours, distance is 120km.
• 2 hours × speed is 50 km/h, Time is 2 hours, distance is 100km.
Combined distance is 220 km, time is 4 hours, average speed is 55 km/h is for above times only and does not include 5th hour.
Answer : For the 5th hour : distance 55 km, time is 1 hour ," speed is 55 km/h".
Total combined distance is 275 km, total time is 5 hours.
Average speed of complete 5 hours journey is 55km/h.
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