document.write( "Question 488292: Please help me solve this word problem, I do not understand what to do.\r
\n" ); document.write( "\n" ); document.write( "It takes John 30 minutes to clean his house, When his wife helps him, it only takes him 18 minutes. How long would it take his wife by herself? \n" ); document.write( "

Algebra.Com's Answer #852354 by ikleyn(53937) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "Please help me solve this word problem, I do not understand what to do.
\n" ); document.write( "It takes John 30 minutes to clean his house, When his wife helps him,
\n" ); document.write( "it only takes him 18 minutes. How long would it take his wife by herself?
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\n" ); document.write( "\n" ); document.write( "        Many beginner students don't know what to do when seeing problems like this one.\r
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\n" ); document.write( "\n" ); document.write( "        Meanwhile, these problems are simple
\n" ); document.write( "        and allow simple solution, which fits good for beginners.\r
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document.write( "Working together, John and his wife make   of the job per minute.\r\n" );
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document.write( "        It is their combined rate of work.\r\n" );
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document.write( "Working alone, John makes    of the job per minute.\r\n" );
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document.write( "        It is John's individual rate of work.\r\n" );
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document.write( "From this, it is clear that the wife's rate of work is the difference\r\n" );
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document.write( "         -  =  -  =  =  =  =  = .\r\n" );
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document.write( "So, the wife's rate of work is    of the job per minute.\r\n" );
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document.write( "Hence, it requires 45 minutes for the wife to complete the job working alone.    ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved.\r
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\n" ); document.write( "\n" ); document.write( "Simple ? If you understand it, you will be able to solve thousands other similar problems.\r
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\n" ); document.write( "\n" ); document.write( "Compare 8 lines explanations in my post against 50 lines in the post by @Theo.\r
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