Respuesta :
5 people , 1 wall ~ 20/5 = 4 minutes
1 person, 1 wall ~ 4/5 minutes
9 people, 1 wall ~ (4/5) x 9 = (36/5) minutes
Therefore 9 people, 9 walls ~ (36/5) x 9
= 64.8 minutes
= 1h 4 min 48 s
5 people , 1 wall ~ 20/5 = 4 minutes
1 person, 1 wall ~ 4/5 minutes
9 people, 1 wall ~ (4/5) x 9 = (36/5) minutes
Therefore 9 people, 9 walls ~ (36/5) x 9
= 64.8 minutes
= 1h 4 min 48 s
