Speaker
  • A speaker comes to your school to make a sixty minute presentation in the auditorium. Thirty percent of the students in attendance heard the entire speech and 10 percent slept through the entire talk. Half of the remaining students heard one-fourth of the speech and the other half heard three-fourths of the talk. What was the average number of minutes of the talk heard by the students in the audience?

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