document.write( "Question 1072451: Braun invested a certain sum of money at 8% p.a. simple interest for 't' years. At the end of 't' years, Braun got back 4 times his original investment. What is the value of t? \n" ); document.write( "
Algebra.Com's Answer #687370 by jorel1380(3719)\"\" \"About 
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Let n be the amount Braun invested. At the end, he has 4 times his original investment. So:
\n" ); document.write( "4n=.08t
\n" ); document.write( "t=4/.08
\n" ); document.write( "t=50 years before Braun gets back 4x his original investment. ☺☺☺☺
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