Jawapan

  • Pengguna Brainly
2016-01-07T18:35:46+08:00
Wall=6 men,8 hours,5 days
wall=4 men,5 hours,? days
6 men=5 days
1 men=5/6 days
4 men=5/6 days x 4
          = 3 days 20 minutes