A train travelled from A to B and back in a certain time at the rate of 60 Km/hr. But if the train had travelled from A to B at the rate of 80 Km/hr and back from B to A at the rate of 40 Km/hr it would take two hours longer. The distance between A and B is-

• ক 320 km
• খ 480 km
• গ 540 km
• ঘ 180 km
• 5 210 km ✅ সঠিক উত্তর