$A$ man walks $6 \, km$ at a speed of $1 \frac{1}{2} \, km/h$,runs $8 \, km$ at a speed of $2 \, km/h$,and travels another $32 \, km$ by bus. The speed of the bus is $8 \, km/h$. Find the average speed of the man in $km/h$.
- A$4 \frac{5}{6}$
- B$3 \frac{5}{6}$
- C$5 \frac{7}{6}$
- DNone of these
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