document.write( "Question 1102378: The national wealth of a country increases by 4% of its value at the beginning of every year.find the national wealth of a country in 1985,if it was estimated at rs. 3.125*10*12in every year \n" ); document.write( "
Algebra.Com's Answer #717059 by Boreal(15235)\"\" \"About 
You can put this solution on YOUR website!
Question not clear. I can answer what was the national wealth in 1985 if in 2015 it was estimated at 3.125*10^12 (not 10*12, which would be too small).
\n" ); document.write( "3.125*10^12=Po(1+.04)^30; 1.04^30=3.243, but round only at end
\n" ); document.write( "divide both sides by 3.243
\n" ); document.write( "Po(1985)=9.635*10^11
\n" ); document.write( "If the question is different, resubmit, but that is how one would work back.
\n" ); document.write( "
\n" );