document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=342360>Question 342360</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please help me solve this: A father is four times as old as his son. In six years time,their combined ages will be 57. How old is the father now? </SPAN>\n" );
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document.write( "Let father's age be F years\r<BR>\n" );
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document.write( "Since the father is four times as old as the son, then the son's age is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F4 ALIGN=MIDDLE  ALT=\"1%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" > the father's age, or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2F4%29F ALIGN=MIDDLE  ALT=\"%281%2F4%29F\"   DISABLED_style= \"max-width:90%; height:auto;\" > years\r<BR>\n" );
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document.write( "In six year's time, the father will be (F + 6) years-old, and the son: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2F4%29F+%2B+6 ALIGN=MIDDLE  ALT=\"%281%2F4%29F+%2B+6\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Also, since in 6 year's time, their combined ages will be 57, then we'll have: \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=F+%2B+6+%2B+%281%2F4%29F+%2B+6+=+57 ALIGN=MIDDLE  ALT=\"F+%2B+6+%2B+%281%2F4%29F+%2B+6+=+57\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Multiplying the equation by it's LCD, 4, we get: \r<BR>\n" );
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document.write( "4F + 24 + F + 24 = 228 \r<BR>\n" );
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document.write( "5F + 48 = 228\r<BR>\n" );
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document.write( "5F = 228 - 48\r<BR>\n" );
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document.write( "5F = 180\r<BR>\n" );
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document.write( "F, or father's age is: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=180%2F5 ALIGN=MIDDLE  ALT=\"180%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%2836%29 ALIGN=MIDDLE  ALT=\"highlight_green%2836%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > years.  </SPAN>\n" );
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