document.write( "Question 1030423: What is the average of 4 hours 15 minutes and 5 hours and 42 minutes and 11 hours and 57 minutes \n" ); document.write( "
Algebra.Com's Answer #645306 by fractalier(6550)\"\" \"About 
You can put this solution on YOUR website!
The average of three things is found by adding them and dividing by three, so...
\n" ); document.write( "Average = (4:15 + 5:42 + 11:57)/3 = (20 hours, 114 minutes)/3 = 21 hours 54 minutes/3 =
\n" ); document.write( "7 hours 18 minutes
\n" ); document.write( "
\n" );