Ravi and Ajay start simultaneously from a place A towards B 60 km apart. Ravi's speed is 4km/h less than that of Ajay. Ajay, after reaching B, turns back and meets Ravi at a places 12 km away from B. Ravi's speed is:

• ক 10 km
• খ 8km/h ✅ সঠিক উত্তর
• গ Ravi's speed is:
• ঘ 12 km/h