document.write( "Question 312593: Please help me solve this finance: Ben, Jim, Alice, Erin, and Rick are friends. Ben is 20 years old, Jim is 17 years old, Alice is 21 years old, and Erin is 19 years old. The average age of the 5 friends is 20. How old is Rick? \n" ); document.write( "
Algebra.Com's Answer #223488 by mananth(16946)\"\" \"About 
You can put this solution on YOUR website!
The average age of 5 = 20. The total of their ages =100
\n" ); document.write( "..
\n" ); document.write( "The total age of Ben, Jim, Alice, Erin,= 20+17+21+19=77
\n" ); document.write( "The difference = 33
\n" ); document.write( "So Ricks age = 33 years
\n" ); document.write( "
\n" );