Rasmus

Rasmus goes from station A to station B at the speed of 40km/h and returns B to A at the speed of 60 km/h. Find his average speed.

Correct answer:

v =  48 km/h

Step-by-step explanation:

v1=40 km/h v2=60 km/h  t1 = s/v1 t2 = s/v2  v =  t1+t2s+s  v =  s/v1+s/v22s  v=1/v1+1/v22=1/40+1/602=48 km/h



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