Answer :
Final answer:
Tim's journey of 300 kilometers at an average speed of 80 km/h took 3 hours and 75 minutes, which is equivalent to 3 hours and 45 minutes. So the correct answer is option A.
Explanation:
The student wants to know how long Tim's journey took if he drives 300 kilometers at an average speed of 80 km/h. To find the time, we use the formula time = distance ÷ average speed. Substituting the values given, we get time = 300 km ÷ 80 km/h.
Calculating this gives us a time of 3.75 hours. Since we want the time in hours and minutes, we convert the decimal part of the hours into minutes by multiplying by 60. 0.75 hours * 60 minutes/hour = 45 minutes. Therefore, the journey took 3 hours and 45 minutes.
To confirm, let's consider this: if one travels 80 km in 1 hour, he would travel four times that far in 4 hours, which is 320 km. Since Tim travels less than this distance, the answer less than 4 hours seems reasonable.
