document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=201804>Question 201804</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the father's age 10 years ago was 35 years more than twice his son's age. After how many years from now will the father be<BR>\n" );
document.write( "(i) twice his son's age?<BR>\n" );
document.write( "(ii) thrice his son's age? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #152157 by </B><A HREF=/tutors/aboutme.mpl?userid=MathTherapy><B>MathTherapy(10552)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathTherapy><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=MathTherapy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=152157\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let son’s age now be s<BR>\n" );
document.write( "Then, 10 years ago, son’s age was s – 10\r<BR>\n" );
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document.write( "Therefore, father’s age, 10 years ago was 2(s – 10) + 35 = 2s – 20 +35 = 2s + 15, which means that father’s age now is 2s + 15 + 10 = 2s + 25\r<BR>\n" );
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document.write( "To find the amount of years for father’s age to be twice his son’s, and using y as those amount of years, we get:  2(s + y) = 2s + 25 + y\r<BR>\n" );
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document.write( "2s + 2y = 2s + 25 + y\r<BR>\n" );
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document.write( "y = 25\r<BR>\n" );
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document.write( "So, in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%2825++years%29 ALIGN=MIDDLE  ALT=\"highlight%2825++years%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, father will be twice his son’s age\r<BR>\n" );
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document.write( "To find the amount of years for father’s age to be thrice his son’s, and using y as those amount of years, we get:  3(s + y) = 2s + 25 + y\r<BR>\n" );
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document.write( "3s + 3y = 2s + 25 + y\r<BR>\n" );
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document.write( "2y = - s + 25\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28y++=++%28-s+%2B+25%29%2F2%29 ALIGN=MIDDLE  ALT=\"highlight%28y++=++%28-s+%2B+25%29%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So, in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28%28-s+%2B+25%29%2F2%29 ALIGN=MIDDLE  ALT=\"highlight%28%28-s+%2B+25%29%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, father will be/was thrice his son’s age, where \"s\" represents the son's age, today.\r<BR>\n" );
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