document.write( "Question 780223: A can do work in 12 Days,b in 6 days and c in 3 days.A and B start working together and after day,C jons them.The total numbers of days required to complete the work is\r
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\n" ); document.write( "\n" ); document.write( "ans:
\n" ); document.write( "a)16/7 b) 9/7 c)8/7 d)15/7
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Algebra.Com's Answer #475512 by lwsshak3(11628)\"\" \"About 
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A can do work in 12 Days,b in 6 days and c in 3 days.A and B start working together and after day,C jons them.The total numbers of days required to complete the work is
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\n" ); document.write( "let x=number of days required to complete the work
\n" ); document.write( "A's work rate=1/12
\n" ); document.write( "B's work rate=1/6
\n" ); document.write( "C's work rate=1/3
\n" ); document.write( "\"x%2F12%2Bx%2F6%2B%28x-1%29%2F3=1\"
\n" ); document.write( "LCD:12
\n" ); document.write( "x+2x+4x-4=12
\n" ); document.write( "7x=16
\n" ); document.write( "x=16/7
\n" ); document.write( "ans: a)
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