How much time should be allowed for a 392-km car trip if the car will be traveling at 120 km/h?
Time = Distance/Speed
= 392/120 = 3.267 hours
That's 3 hours and 16 minutes
To calculate the time required for a 392-km car trip at a constant speed of 120 km/h, you need to use the formula: Time = Distance / Speed.
First, divide the distance (392 km) by the speed (120 km/h):
392 km / 120 km/h = 3.27 hours
The result is approximately 3.27 hours. However, it is preferable to convert this result to hours and minutes, as it may be easier to understand.
To convert the decimal part to minutes, multiply it by 60:
0.27 * 60 = 16.2 minutes
So, the decimal part of 0.27 is equal to 16.2 minutes.
Finally, combining the whole number (3 hours) and the converted decimal part (16.2 minutes):
Approximately 3 hours and 16 minutes.
Therefore, for a 392-km car trip at a constant speed of 120 km/h, you should allow approximately 3 hours and 16 minutes.