A correct solution came from Gabe Hart, Andrew Durre, Matt Lakicz, Rachel Rieder, Will Cragoe. Other correct solutions were submitted by Brain Fluhrer, Juan Carlos Marivela, Nancy Scharzkopf, Lou Cairoli, A. Teitelman.
There are several answers to this week's question. Some possibilities: (a) -1, 3, 5, 6, 7; (b) -2, 4, 6, 7, 8; (c) 0, 1, 2, 4, 11; (d) 0, 1, 2, 3, 10; (e) 0, 2, 3, 4, 9; (e) 0, 2, 3, 4, 9. If you add the assumption that the smallest three and the largest three sums are correct, then the first answer is the only possible one.
©2005 Alberto L. Delgado