document.write( "Question 1087579: Paul is half his sisters age and three years older than his brother , the sum of their ages is 33 how old are theyu \n" ); document.write( "

Algebra.Com's Answer #701883 by ikleyn(52788) $\"\"$ $\"About$

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document.write( "Let x be the Paul's age.\r\n" );
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document.write( "Then his sister is 2x years old and his brother is (x-3) years old.\r\n" );
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document.write( "In total,  x + 2x + (x-3) = 33.\r\n" );
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document.write( "Simplify and solve for x:\r\n" );
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document.write( "4x - 3 = 33  ---->  4x = 36  ---->  x =  = 9.\r\n" );
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document.write( "Answer.  Paul is 9 years old; his sister is 2*9 = 18 years old, and Paul's brother is 9-3 = 6 years old.\r\n" );
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