document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=331742>Question 331742</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two brothers took turns washing the family car on weekends. John could usually wash the car in 45 min, whereas Jim took 30 min for the job. One weekend they were in a hurry to go to a football game; so they worked together. How long did it take them? </SPAN>\n" );
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document.write( "1/45 + 1/30 of the job they can do in 1 minute<BR>\n" );
document.write( "LCD = 1350<BR>\n" );
document.write( "75/1350 job they do in 1 minute<BR>\n" );
document.write( "they will take 1350 / 75 = 18 minutes to do the job. </SPAN>\n" );
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