Five points are located on a certain straight line
Nine pairwise distances are known:
2,4,5,7,12,13,15,17,19
Find the 10th.
Based on Hoshino & McCurdy puzzle published in Crux Mathematicorum
The new distance is 8. There are two ways to get the given nine distances (actually, the same set of points, viewed from either end) and each generates the same 10th pairwise distance.
lord@rabbit resolve % s 1 3 8 16 20
2 4 5 7 12 13 15 17 19 8
1 5 13 18 20
2 4 5 7 12 13 15 17 19 8
program is here...
Edited on September 6, 2021, 9:55 am
soln
