A Unique Number
  • Find the four-digit number ABCD such that if you place a decimal point between B and C, the new number is the average of AB and CD. A, B, C, and D are all unique digits.

Answer:    
  Please enter a numerical answer
(ex. 1000 or 2.033) and click GO.		    

Contest problems and answers provided by:

David Rock
rock_david@colstate.edu
Columbus State University

Doug Brumbaugh
brumbad@pegasus.cc.ucf.edu
University of Central Florida