document.write( "Question 1151058: In a class of R student the average mark is Q and in another class of A student the average mark is B. What is the average mark of both classes \n" ); document.write( "
Algebra.Com's Answer #772660 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
In a class of R student the average mark is Q and in another class of A student the average mark is B. What is the average mark of both classes
\n" ); document.write( "===================
\n" ); document.write( "(Q*R + A*B)/(R + A)
\n" ); document.write( "
\n" ); document.write( "
\n" );