Pass - Fail
  • Forty-two students took a mathematics exam in school in which the passing score was 70. The mean score of the forty-two students taking the exam was 75.5 while the mean score of the students who passed the exam was 81, and the mean score of the students who failed was 60. How many students failed the exam?

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