document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1159116>Question 1159116</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Lester and Ralph work in an athletic shoe store in the mall. When they goof off too much their boss punishes them by making them lace-up all of the inventory. If it takes Lester 30 sec to lace-up a high top and Ralph 35 seconds to do the same, how many seconds will it take them to lace-up 260 high top shoes? </SPAN>\n" );
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document.write( "Consider the least common multiple of the two given times, which is 210 seconds.<br><BR>\n" );
document.write( "In 210 seconds, Lester can lace up 210/30 = 7 shoes, and Ralph can lace up 210/35 = 6 shoes.  So in every 210 seconds the two of them can lace up 7+6=13 shoes.<br><BR>\n" );
document.write( "They need to lace up 260 shoes.  260/13 = 20; so the amount of time it will take them to lace up the 260 shoes is 20*210 = 4200 seconds, or 70 minutes.<br><BR>\n" );
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