An automobile travels from city A to city B and returns to city A by the same…
GATE · 2018 · IN · General Aptitude
An automobile travels from city A to city B and returns to city A by the same route. The speed of the vehicle during the onward and return journeys were constant at 60 km/h and 90 km/h, respectively. What is the average speed in km/h for the entire journey?
- A.
72
- B.
73
- C.
74
- D.
75
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