4. A bus travels a distance of 120 km with a speed of 40 km/h and returns with a speed of
30 km/h. Calculate the average speed for the entire journey.
Answers
Answered by
0
Answer:
Average speed = total distance traveled (s) / total time taken (t)
total distance traveled(s)
= 120 km (for forward journey) + 120 km (for backward journey)
time for forward journey(t 1)
= 120 km / 40 km/hr
= 3 hr
time for backward journey (t 2)
= 120 km / 30 km / hr
= 4 hr
so, total time taken(t)
= t 1 + t 2
= 7 hr
so, average speed
= s/t = 240 km / 7 hr
= 34.286 km/hr
Answered by
3
Answer:
HERE IS YOUR ANSWER
Explanation:
T1 = 120/40 = 3hr. Average speed = Total distance covered/Total time taken = 240/7=34.28Km/hr.
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