A man starts climbing a 11 m high wall at 5 pm. In each minute he climbs up 1 m but slips down 50 cm. At what time will he climb the wall?

• ক 0.72708333333333
• খ 0.72916666666667
• গ 0.71944444444444 ✅ সঠিক উত্তর
• ঘ 0.72569444444444