The speed of a boat in still water is $9\, km/h$ and the speed of the stream is $1.5\, km/h$. $A$ man rows to a place at a distance of $105\, km$ and comes back to the starting point. What is the total time taken by him?
- A$24\, \text{hours}$
- B$25\, \text{hours}$
- C$26\, \text{hours}$
- D$28\, \text{hours}$
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