A, B and C start together from the same place to walk round a circular path of length 12km. A walks at the rate of 4 km/h, B 3 km/h and C 3232 km/h. They will meet together at the starting place at the end of:

• ক 12 hours
• খ 24 hours ✅ সঠিক উত্তর
• গ 15 hours
• ঘ 10 hours