Question 450107
  <pre><font face = "Tohoma" size = 4 color = "indigo"><b> 
Hi,
Three lockers are numbered consecutively (n,n+1,n+2)
Question states***
 n + (n+2) = 2(n+1)
  2n + 2 = 2n + 2
  Lockers can be any consecutive numbers