A car travels 180 km from A to B at 60 kph, and returns from B to A along the same route at 90 kph. What is the average speed of the round trip?
+131 A-----------------------B
0 ---------------------- 180
The trip from A to B took him 3 hrs
The trip from B to A took 2hrs.
\(\frac52\) = 2.5
+37146 Well we know from Guest that total time was 5 hours
total distance was 180 + 180 = 360 km
Avg speed = 360km/5hr = ......... km/hr
