72 km in 48 min
69 km at 60 km/h
what is total avrage speed ?...
![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 23.10.2020 16:50, guillianaroberts
72 km in 48 min
69 km at 60 km/h
what is total avrage speed ?
![answer](/tpl/images/cats/otvet.png)
Answers: 3
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