Here's why:
* Average speed is calculated by dividing the total distance traveled by the total time taken: Speed = Distance / Time
* If the distance increases, the numerator in the equation gets larger.
* If the time decreases, the denominator in the equation gets smaller.
* When you divide a larger number by a smaller number, the result is a larger number.
Therefore, increasing the distance while decreasing the time leads to a higher average speed.