document.write( "Question 10949: A steel rod. 31 cm. long is to be cut into 3 parts, two of which parts are to be of equal lengths. The lengths of each of the 2 equal parts is 5 cm. more than the third part. Find their lengths. \n" ); document.write( "
Algebra.Com's Answer #5787 by askmemath(368)![]() ![]() ![]() You can put this solution on YOUR website! Let the third part be of length l\r \n" ); document.write( "\n" ); document.write( "Then the length of the 2 unequal parts which are greater than the third part by 5 cms is l+5\r \n" ); document.write( "\n" ); document.write( "Total lenght = 31 \n" ); document.write( "l+5+l+5+l=31 \n" ); document.write( "3l+10=31 \n" ); document.write( "Subtracting 10 on both sides \n" ); document.write( "3l=31-10 \n" ); document.write( "3l=21 \n" ); document.write( "Dividing by 3 throughout \n" ); document.write( "l=7 \n" ); document.write( "And so the other parts are of length 12cms each. \n" ); document.write( " |