+468 +468 +323 Dec 3, 2017

+389 +389 +1364 +1364 +1364 +389 +389 Six points are put on a segment 23cm long (including the end points of the segment) This creates 15 different distances between the points which are in cm 2,3,5,6,7,8,9,n,13,14,15,18,20,21 and 23. What is the value of n