fidanh211 fidanh211
  • 20-09-2016
  • Mathematics
contestada

a car completes a journet at an average speed of 40km/h. at what speed must it travel on return journey if average speed for complete journey is 60km/h

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Wætrb4II
Wætrb4II Wætrb4II
  • 20-09-2016
The answer is 80km/h I think.
Answer Link
Sammiles26
Sammiles26 Sammiles26
  • 20-09-2016
The return speed would be 80km/h.

40km/h+80km/h=160km/h
160km/h(divide by)2=60km/h
Answer Link

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