QuestionCalculate Beatrice's average speed for her journey of $3 \mathrm{~km}$, walking at $4 \mathrm{~km/h}$ and $4.5 \mathrm{~km/h}$.

Studdy Solution
Calculate the average speed.
$$Average\, speed = \frac{3\, km}{0.69\, h} =4.35\, km/h$$Beatrice's average speed for the whole journey is4.35 km/h.