document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=828205>Question 828205</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Sir Please help me to solve the following question:\r<BR>\n" );
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document.write( "3)	If a bird flies 80km/h with the wind but only 40km/h against the wind. What is the bird speed in still air? What is the speed of the wind? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #499137 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=499137\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If a bird flies 80km/h with the wind but only 40km/h against the wind. What is the bird speed in still air? What is the speed of the wind?<BR>\n" );
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document.write( "Equations::<BR>\n" );
document.write( "With wind:: b + w = 80 km/hr<BR>\n" );
document.write( "Against ::: b - w = 40 km/hr<BR>\n" );
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document.write( "Add and solve for \"b\":<BR>\n" );
document.write( "2b = 120<BR>\n" );
document.write( "b = 60 km/hr (speed of the bird in still air)<BR>\n" );
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document.write( "Solve for \"w\":<BR>\n" );
document.write( "b + w = 80<BR>\n" );
document.write( "60 + w = 80<BR>\n" );
document.write( "w = 20 km/hr (speed of the wind)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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