Admission test for the degree course in medicine and surgery academic year 2015/2016
Domanda 12 di 54
A farmer wishes to fix fencing rails to posts which are already in place. The posts are shown in the diagram. The farmer has a supply of rails, each one 2.4 m long. One rail or part of a rail is to be fixed between each pair of posts. (He can cut the rails into smaller lengths).
What is the smallest number of rails that he could use?