Two trains, A ans B start from stations X and Y towards each other, they take 4 hours 48 minutes and 3 hours 20 minutes to reach Y and X respectively after they meet. If train A is moving at 45 km/hr, then the speed of the train B is?

• ক 54 km/hr ✅ সঠিক উত্তর
• খ 37.5 km/hr
• গ 64.80 km/hr
• ঘ 60 km/hr