document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1145444>Question 1145444</A>: <I><SPAN STYLE=\"word-break: break-all;\">  Round off 1h 38m 48s to the nearest 1/4hour </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #766674 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=766674\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1 hour 38 minutes 48 seconds rounded to the nearest quarter hour can be done as follows.\r<BR>\n" );
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document.write( "it could be 1 hour 30 minutes or it could be 1 hour 45 minutes.\r<BR>\n" );
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document.write( "a simple way to do this is to convert hours minutes seconds to hours.\r<BR>\n" );
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document.write( "you do this by dividing the seconds by 60 to get minutes and then dividing by 60 again to get hours.\r<BR>\n" );
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document.write( "in other words, minutes divided by 60 = hours and seconds divided by 60^2 = 3600 = hours.\r<BR>\n" );
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document.write( "therefore 1 hour 38 minutes 48 seconds would equal to 1 plus 38 / 60 plus 48 / 3600 = 1.64666666..... hours.\r<BR>\n" );
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document.write( "1 hour 30 minutes = 1 plus 30 / 60 = 1.5 hours.\r<BR>\n" );
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document.write( "1 hour 45 minutes = 1 plus 45 / 60 = 1.75 hours.\r<BR>\n" );
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document.write( "halfway between 1 hour 30 minutes and 1 hour 45 minutes would be equal to (1.5 + 1.75) / 2 = 1.625 hours.\r<BR>\n" );
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document.write( "since 1.64666666...... hours is more than that, then rounded to the nearest<BR>\n" );
document.write( "quarter hour would be 1.75 hours.\r<BR>\n" );
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document.write( "another way would be as follows:\r<BR>\n" );
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document.write( "the nearest quarter hour would be either 1 hour 30 minutes or 1 hour 45 minutes.\r<BR>\n" );
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document.write( "1 hour 38 minutes 48 seconds minus 1 hour 30 minutes would be equal to 8 minutes 48 seconds.\r<BR>\n" );
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document.write( "1 hour 45 minutes minus 1 hour 30 minutes is equal to 15 minutes.\r<BR>\n" );
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document.write( "15 minutes / 2 = 7.5 minutes.\r<BR>\n" );
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document.write( "8 minutes 48 seconds is greater than that, therefore 1 hour 38 minutes 48 seconds is closer to 1 hour 45 minutes which then becomes the rounded number.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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