document.write( "Question 1208466: Three years back, a father was 24 years older than his son. At present the father is 5 times as old as the son. How old will the son be three years from now?
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Algebra.Com's Answer #846891 by ikleyn(52788) $\"\"$ $\"About$

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\n" ); document.write( "Three years back, a father was 24 years older than his son. At present the father is 5 times as old as the son.
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document.write( "Since Three years back the father was 24 years older than his son,\r\n" );
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document.write( "at present we have the same difference: today the father is 24 years older than his son.\r\n" );
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document.write( "So, two statements are valid simultaneously:\r\n" );
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document.write( "    (1)  today the father is 24 years older than his son,\r\n" );
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document.write( "and\r\n" );
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document.write( "    (2)  At present, the father is 5 times as old as the son.\r\n" );
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document.write( "Let the son age is x years; then the father is 5x years old, and\r\n" );
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document.write( "    5x - x = 24.\r\n" );
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document.write( "So, 4x = 24,  x = 24/4 = 6 years,  so the son is 6 years old now and the father is 6+24 = 30 years old now.\r\n" );
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document.write( "In 3 years from now, the son will be  6 + 3 = 9 years old.    ANSWER\r\n" );
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