document.write( "Question 1202792: How long will it take a sum of money to double itself if interest 12(1/2)% per annum \n" ); document.write( "
Algebra.Com's Answer #837897 by mananth(16946)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "Let Principal be P \n" ); document.write( "doubles in how many years =2P\r \n" ); document.write( "\n" ); document.write( "Interest = 2P-P=P\r \n" ); document.write( "\n" ); document.write( "Rate = 12.5% = 0.125\r \n" ); document.write( "\n" ); document.write( "I = P * n*r\r \n" ); document.write( "\n" ); document.write( "P = P*n *0.125\r \n" ); document.write( "\n" ); document.write( "n= 1/0.125\r \n" ); document.write( "\n" ); document.write( "= 8 years\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |