document.write( "Question 1052885: The average mark on a test for a class of 35 students was 61%. The average mark obtained by the 15 girls in the class was 65%. What was the average mark obtained by the boys? \n" ); document.write( "
Algebra.Com's Answer #668175 by josmiceli(19441)![]() ![]() You can put this solution on YOUR website! [ ave mark ] = [ total of marks ] / [ number of students ] \n" ); document.write( "---------------------- \n" ); document.write( "For all the students: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Total of marks for all students \n" ); document.write( "------------------------------ \n" ); document.write( "For the girls: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Total of marks for girls \n" ); document.write( "------------------------ \n" ); document.write( " \n" ); document.write( "and \n" ); document.write( " \n" ); document.write( "--------------------- \n" ); document.write( "Let \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "The average mark for the boys is 58 \n" ); document.write( " \n" ); document.write( " |