Answer: The hyena runs 5 kilometers for every kilometer the mouse runs
Explanation: We are given that: A hyena runs 2 kilometers for every 2/5 kilometer a mouse runs. We can simply use cross multiplication to know how many km the hyena runs for every one km the mouse runs as follows: hyena runs 2 km ..............> mouse runs 2/5 km ?? km ..............................> mouse runs 1 km number of km = (1*2) / (2/5) = 5 km