Answer:
Car B will travel 262.5 km for 2 hours 30 minutes at the same speed as Car A.
Explanation:
We can use the formula:
distance = speed x time
Car A's speed is:
speed = distance / time = 315 km / 3 hours = 105 km/h
If Car B uses the same speed as Car A, then its speed is also 105 km/h.
Car B's time is:
time = 2.5 hours = 2 hours + 0.5 hours = 2 hours + 30 minutes / 60 minutes = 2.5 hours
Now we can use the formula to calculate Car B's distance:
distance = speed x time = 105 km/h x 2.5 hours = 262.5 km
Therefore, Car B will travel 262.5 km for 2 hours 30 minutes at the same speed as Car A.