To convert the speed of the car from kilometers per hour (km/h) to miles per hour (mph), you can use the conversion factor you provided (1 kilometer ≈ 0.62 miles).
Given that the car travels at 120 kilometers per hour, the conversion to miles per hour can be calculated as follows:
\[ \text{Speed in mph} = \text{Speed in km/h} \times \text{Conversion factor} \]
\[ \text{Speed in mph} = 120 , \text{km/h} \times 0.62 , \text{miles/km} \]
\[ \text{Speed in mph} = 74.4 , \text{mph} \]
Therefore, the speed of the car is approximately 74.4 miles per hour.