A car departs at 8:15 AM and travels 195 km at an average speed of 105 km/h. If the driver takes a 20-minute coffee break, what time will they arrive?

The driving time is calculated using the formula: $\text{Time} = \frac{\text{Distance}}{\text{Speed}}$.

$$\text{Driving time} = \frac{195 \text{ km}}{105 \text{ km/h}} = \frac{13}{7} \text{ hours}$$

$$\frac{13}{7} \text{ hours} = 1 \text{ hour} + \frac{6}{7} \text{ hours}$$

To convert the fractional part of an hour to minutes:

$$\frac{6}{7} \text{ hours} \times 60 \text{ minutes/hour} = \frac{360}{7} \text{ minutes} \approx 51.43 \text{ minutes}$$

Rounding to the nearest minute, the driving time is 1 hour and 51 minutes.

The total travel duration includes the driving time and the coffee break.

$$\text{Total duration} = \text{Driving time} + \text{Coffee break}$$ $$\text{Total duration} = 1 \text{ hour } 51 \text{ minutes} + 20 \text{ minutes}$$ $$\text{Total duration} = 1 \text{ hour } 71 \text{ minutes}$$

Since 71 minutes is 1 hour and 11 minutes:

$$\text{Total duration} = 1 \text{ hour} + 1 \text{ hour } 11 \text{ minutes} = 2 \text{ hours } 11 \text{ minutes}$$

The arrival time is the departure time plus the total travel duration.

$$\text{Arrival time} = \text{Departure time} + \text{Total duration}$$ $$\text{Arrival time} = 08:15 + 2 \text{ hours } 11 \text{ minutes}$$ $$\text{Arrival time} = \text{10:26}$$

The arrival time in Kokstad is 10:26.

$$\text{10:26}$$