रिचर्ड एक दूरी के पहले भाग को 110 मील प्रति घंटे की गति से और दूसरे भाग को 440 मील प्रति घंटे की गति से तय करता है। पूरी यात्रा की औसत गति (मील प्रति घंटे में) ज्ञात कीजिए।

If a person travels a distance of 90 km at a speed of 45 km/h and another distance of 150 km at a speed of 50 km/h, what is his average speed for the entire journey?

Anita travels from place A to place B at a speed of 30 km/h, from place B to place C at 40 km/h, and from place C to place D at 120 km/h. If the distances between these places are equal, what is Anita's average speed (in km/h) during the entire journey?