7. Twelve people are carrying 12 loaves of bread. Each man carries 2 loaves, each woman carries half a loaf, and each child carries a quarter of a loaf, and all 12 people are involved in the carrying. How many men, how many women, and how many children were there?
7. 5 men, 1 woman, and 6 children. Show that the number of men cannot be, first, less than five, and second, more than five.