document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=641209>Question 641209</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Flying with the wind, a bird was able to make 150 km/hr.If the wind was half as strong and the bird flies against it, it could make only 30 km/hr. Find the velocities of the wind and the bird.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #403580 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=403580\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Flying with the wind, a bird was able to make 150 km/hr.If the wind was half as strong and the bird flies against it, it could make only 30 km/hr. Find the velocities of the wind and the bird<BR>\n" );
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document.write( "let x=speed of bird <BR>\n" );
document.write( "let c=speed of wind<BR>\n" );
document.write( "x+c=speed of bird with the wind<BR>\n" );
document.write( "x-c=speed of bird against the wind<BR>\n" );
document.write( "..<BR>\n" );
document.write( "x+c=150<BR>\n" );
document.write( "x-c/2=30<BR>\n" );
document.write( "..<BR>\n" );
document.write( "x+c=150<BR>\n" );
document.write( "2x-c=60<BR>\n" );
document.write( "add<BR>\n" );
document.write( "3x=210<BR>\n" );
document.write( "x=70<BR>\n" );
document.write( "c=150-x=80<BR>\n" );
document.write( "speed of bird= 70 km/hr<BR>\n" );
document.write( "speed of wind= 80 km/hr </SPAN>\n" );
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