document.write( "Question 1060815: IN a piggy bank the no. of Rs.5. coin. is 5 time of Rs. 10 coin and total coin is 120 coin what is the amount in the piggy bank \n" ); document.write( "
Algebra.Com's Answer #807695 by CubeyThePenguin(3113) You can put this solution on YOUR website! n = number of Rs. 5 coins \n" ); document.write( "d = number of Rs. 10 coins\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "n = 5d \n" ); document.write( "n + d = 120\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Substitute the first equation into the second.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "5d + d = 120 \n" ); document.write( "6d = 120 \n" ); document.write( "d = 20\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "There are 100 Rs. 5 coins and 20 Rs. 10 coins. \n" ); document.write( " |