text: 7 men are needed to build a garage in 2 days. how many men are needed to do it in half a day? it's not for school. and i'll give 10 points to whoever explains it better. thanx. direct porportions.   men x days = k      where k= constant   7x2=k                      k=14  m times .5=k           substitute k=14  m=14/.5  m=28                       men=28