Question:
A car travles 180 km from A to B at 60 kilometers/hour and returns from B to A along the same route at 90 kilometers/hour. The average speed in kilometers per hour for the round trip is:
30 | |
72 | |
36 | |
180 | |
72 |
Answer:
72
Last Updated:
08/11/2021 - 03:25