document.write( "Question 1147007: Two years ago, tom is twice as old as jerry. In 2 years, tom is five years older than jerry. How old are they now?
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Algebra.Com's Answer #768293 by ikleyn(52781)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( " \r\n" ); document.write( "\r\n" ); document.write( "Since \"in 2 years, Tom is five years older than Jerry\", Tom always is five years older than Jerry until both are alive.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "In particular, two years ago Tom was 5 years older than Jerry, \r\n" ); document.write( "\r\n" ); document.write( "and was twice as old as Jerry at the same time, according to the condition.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Hence, 2 years ago they were 5 and 10 years old.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "So, now they are 7 and 12 years old.\r\n" ); document.write( "\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Solved (mentally, without using equations).\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |