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

20-09-2016

The answer is 80km/h I think.

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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

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