Solution:
1. Given:
* Speed of the plane: 850 \ \text{km/h}
* Distance to cover: 12,000 \ \text{km}
2. Use the formula for time:
\text{Time} = \frac{\text{Distance}}{\text{Speed}}
3. Substitute the given values into the formula:
\text{Time} = \frac{12,000 \ \text{km}}{850 \ \text{km/h}}
4. Calculate the time:
\text{Time} \approx 14.1176 \ \text{hours}
5. Round the answer to a practical number of decimal places (usually two):
\text{Time} \approx 14.12 \ \text{hours}
The time it will take is approximately 14.12 \ \text{hours}.