document.write( "Question 1006039: A person spent Rs 345 in buying pens and copies.if each pen cost Rs 5 and copy Rs 2.50 and if the total number of things was 108,how many of each did he buy? \n" ); document.write( "
Algebra.Com's Answer #622403 by rfer(16322)![]() ![]() ![]() You can put this solution on YOUR website! p+c=108 \n" ); document.write( "p=108-c \n" ); document.write( "-------------- \n" ); document.write( "5p+2.50c=345 \n" ); document.write( "5(108-c)+2.50c=345 \n" ); document.write( "540-5c+2.50c=345 \n" ); document.write( "-2.50c=345-540 \n" ); document.write( "c=-195/-2.50 \n" ); document.write( "c=78 copies \n" ); document.write( "--------------- \n" ); document.write( "p=108-78=30 pens \n" ); document.write( "----------------- \n" ); document.write( "5p+2.5c=345 \n" ); document.write( "5*30+2.50*78= \n" ); document.write( "150+195=345 total \n" ); document.write( " |