Two trains 180 meters and 120 meters in length are running towards each other on parallel tracks, one at the rate 65 km/hr and another at 55 km/hr. In how many seconds will they be cross each other from the moment they meet?

• ক 12 seconds
• খ 9 seconds ✅ সঠিক উত্তর
• গ 15 seconds
• ঘ 6 seconds