document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1199026>Question 1199026</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Four years ago,a mother was 4 times as old as her son.In 4 years time, the sum of their ages will be 56years .Find the age of the mother when the son was born  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #832725 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52782)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=832725\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "Four years ago, a mother was 4 times as old as her son.<BR>\n" );
document.write( "In 4 years time, the sum of their ages will be 56 years.<BR>\n" );
document.write( "Find the age of the mother when the son was born <BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Below is the mental solution.\r<BR>\n" );
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document.write( "Since in 4 years the sum of their ages will be 56 years,\r\n" );
document.write( "      it means that the sum of their ages now is 56 - 4 - 4 = 48.\r\n" );
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document.write( "Since now the sum of their ages is 48 years,\r\n" );
document.write( "      it means that the sum of their ages four years ago was 48 - 4 - 4 = 40.\r\n" );
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document.write( "Since four years ago the sum of their ages was 40 and the mother was 4 times as old as her son,\r\n" );
document.write( "      it implies that at that time the son was 8 years old and the mother was 32 years old\r\n" );
document.write( "      (it is the only place, where minimal mental step is required,\r\n" );
document.write( "       but for most people it is a quite affordable effort).\r\n" );
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document.write( "Since the difference of their ages was 32-8 = 24 at that time, it means that the mother is 24 years older than the son.\r\n" );
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document.write( "In other terms, it means that the mother was 24 years old when the son was born.    <U>ANSWER</U>\r\n" );
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document.write( "Solved.\r<BR>\n" );
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document.write( "The total time to solve this problem in this way is about and around of 10 seconds.\r<BR>\n" );
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document.write( "/////////////////\r<BR>\n" );
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document.write( "Regarding the post by @josgarithmetic, I recommend you to tape your eyes and plug your ears \r<BR>\n" );
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document.write( "in order for do not see and do not hear that gibberish, which this person writes in his posts.\r<BR>\n" );
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document.write( "In more soft terms, simply ignore his writing, for safety of your mind.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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