document.write( "Question 838655: in an examination , a student attempted 15 questions correctly and secured 40 marks. if there are two types of questions ( 2 ,marks and 4 marks questions.how many questions of 2,marks did he attempt \n" ); document.write( "

Algebra.Com's Answer #505215 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
\n" );
document.write( "Hi,
\n" );
document.write( "Let x represent number of 2 mark questions 
\n" );
document.write( " 2x + 4(15-x) = 40 ****
\n" );
document.write( "     20 = 2x
\n" );
document.write( "      x =   2 mark questions 
\n" );
document.write( "CHECKING our answer***
\n" );
document.write( " 20 + 4*5 = 40marks \n" );
document.write( "

\n" );