document.write( "Question 948826: A and B can do a work in 12 days and 20 days.A works alone for 4 days and then B joins to help.in how many days will they finish the job?\r
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document.write( "ans- A in 1 day = 1/12
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document.write( " B in 1 day = 1/20
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document.write( "A alone works for 4 days
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document.write( "therefore in 4 days A'work = 4*1/20= 1/5
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document.write( "Remaining work 4/5
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document.write( "then B joins...... \n" );
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Algebra.Com's Answer #579236 by Fombitz(32388)![]() ![]() You can put this solution on YOUR website! You made a mistake. \n" ); document.write( "A working for 4 days would be, \n" ); document.write( " \n" ); document.write( "So that leaves \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( "So then use the rate for A and B together. \n" ); document.write( " \n" ); document.write( "So then, \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |