SOLUTION: A boat traveled at 10 km/h for 1 hour, then at 13 km/h for 2 hours, and finally at 11 km/h for another hour... Over the whole trip the average speed was 15 km/h. How was it 15km/h
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Question 899613: A boat traveled at 10 km/h for 1 hour, then at 13 km/h for 2 hours, and finally at 11 km/h for another hour... Over the whole trip the average speed was 15 km/h. How was it 15km/h
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The average speed is:
( total distance traveled ) / ( total time of travel )
--------------
km
----------------
--------------
km
-----------------
--------------------------
total time =
total time = hrs
-----------------------
km/hr
I don't see how it could be 15 km/hr
with the given numbers
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