document.write( "Question 655298: Mrs. Brown can clean her house in 3 hours. Her daughters can do the same job in 6 hours. How long will it take them to clean the house if they work together? \n" ); document.write( "
Algebra.Com's Answer #409048 by ash.ghadge(2)\"\" \"About 
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assume that they took 'x' days to clean the house together.
\n" ); document.write( "as Mrs. brawn cleans in 3 hours. in 1 hour she cleans 1/3rd part of the house.
\n" ); document.write( "hence in 'x' hours she cleans x/3 rd part of the house
\n" ); document.write( "similarly her daughter cleans the house in 6 hours. in 1 hour she cleans 1/6th part of the house.
\n" ); document.write( "it means in 'x' hours she cleans x/6th part of the house.\r
\n" ); document.write( "\n" ); document.write( "both of them paints '1' house is 'x' hours.\r
\n" ); document.write( "\n" ); document.write( "hence equation becomes: \r
\n" ); document.write( "\n" ); document.write( " \"3x+=+6\"\r
\n" ); document.write( "\n" ); document.write( "divide both sides by 3 \"3x%2F3+=+6%2F3\"
\n" ); document.write( " x = 2
\n" ); document.write( "Mrs. Brawn and her daughter can clean the house in 2 hours working together.
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