document.write( "Question 1120144: Kim is 3 years older than John. The sum of their ages is less than 16. What is the oldest John could be? \n" ); document.write( "

Algebra.Com's Answer #735804 by ikleyn(52803) $\"\"$ $\"About$

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document.write( "Kim   + John < 16\r\n" );
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document.write( "(J+3) + J    < 16\r\n" );
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document.write( "2J + 3 < 16\r\n" );
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document.write( "2J < 16 - 3 = 13   ====>  J < 13/2 = 6.5.\r\n" );
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document.write( "Assuming John's age is an integer number, you get the solution set  J <= 6  for John.\r\n" );
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document.write( "Answer.  The solution set for John's age is  {1, 2, 3, 4, 5, 6}.\r\n" );
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\n" ); document.write( "\n" ); document.write( "P.S. I do not consider the possibility for John to be 0 years old.\r
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\n" ); document.write( "\n" ); document.write( "Although the child can be younger than 1 year, I never saw or heard the phrase \"the child is 0 years old\".\r
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\n" ); document.write( "\n" ); document.write( "But since English is my second language, I do not consider myself as an expert in such kind of suggestions.\r
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