if u take a trip which entails travelling 900 km by train at an average speed of 60 kmph 3000 km by boat at an average of 25 kmph and finally 15km by taxi at 25 kmph what is your average speed for the entire distance?
Answers
Step-by-step explanation:
Step-by-step explanation:
Required formula:
Average speed for the entire journey = [Total Distance covered for the trip] / [Total Time]
Time = Distance/Speed
According to the data in the question, we get
Total Distance travelled during the trip = 900 + 3000 + 400 + 15 = 4315 km
and,
Based on the second formula we get,
Total time of the entire journey is given by,
= [\frac{900}{60} + \frac{3000}{25} + \frac{400}{350} + \frac{15}{25}
60
900
+
25
3000
+
350
400
+
25
15
hr
= [15 + 120 + 1.14 + 0.6] hr
= 136.74 hr
Thus, substituting the values of total distance and total time in the first formula, we get
Average Speed for the entire distance is given by,
= [\frac{4315}{136.74}
136.74
4315
km/hr
= 31.56 km/hr
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