A train overtakes two persons who are walking in the same direction to that of the train at 2 kmph and 4 kmph and passes them completely in 9 and 10 seconds respectively. What is the length of the train?

• ক 60 meter
• খ 65 meter
• গ 50 meter ✅ সঠিক উত্তর
• ঘ 55 meter