document.write( "Question 97007: Ben wanted to know how old his friend Mr. Fister was. Mr. Fister told him, \"I started school when I was 4.5, and I stayed at the school for 1/3 of my life. I was then in the army for 1/5 of my life, and when I left the army I spent 1/4 of my life as a clerk. Now, I have spent 1/3 of my life in retirement.\" How old is Mr. Fister? \n" ); document.write( "
Algebra.Com's Answer #70622 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Ben wanted to know how old his friend Mr. Fister was. Mr. Fister told him, \"I started school when I was 4.5, and I stayed at the school for 1/3 of my life. I was then in the army for 1/5 of my life, and when I left the army I spent 1/4 of my life as a clerk. Now, I have spent 1/3 of my life in retirement.\" How old is Mr. Fister? \n" ); document.write( "---------------- \n" ); document.write( "Let Mr. Fister's age be x yrs. \n" ); document.write( "EQUATION: \n" ); document.write( "4.5 + (1/3)x + (1/5)x + (1/4)x + (1/3)x = x \n" ); document.write( "Multiply thru by 60 to get: \n" ); document.write( "270 + 20x + 12x + 15x + 20x = 60x \n" ); document.write( "270 + 67x = 60x \n" ); document.write( "---------- \n" ); document.write( "Cheers, \n" ); document.write( "This gives a negative value for \"x\". \n" ); document.write( "Check the statement of your problem. \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |