document.write( "Question 448309: A milk tank can be filled by pip A in 6 hours, by pipe B in 8 hours and by pipe C in 12 hours. how long will it take all three pipes working together to fill the tank? \n" ); document.write( "

Algebra.Com's Answer #853338 by ikleyn(53419) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "A milk tank can be filled by pipe A in 6 hours, by pipe B in 8 hours and by pipe C in 12 hours.
\n" ); document.write( "how long will it take all three pipes working together to fill the tank?
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\n" ); document.write( "\n" ); document.write( " Calculations in the post by @mananth are inaccurate; his solution and his answer are incorrect.\r
\n" ); document.write( "\n" ); document.write( " I came to bring a correct/accurate solution in the form as it SHOULD be presented.\r
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document.write( "First  pipe makes 1/6 of the job per hour.\r\n" );
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document.write( "Second pipe makes 1/8 of the job per hour.\r\n" );
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document.write( "Third  pipe makes 1/12 of the job per hour.\r\n" );
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document.write( "Working together, the three pipes make\r\n" );
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document.write( "     +  +  =  +  +  =  =  = \r\n" );
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document.write( "of the job per hour.\r\n" );
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document.write( "Hence, it will take   hours,  or  2 hours, or 2 hours and 40 minutes to fill the tank,\r\n" );
document.write( "if all three pipes work together.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved.
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And my separate notice in the margins of my solution

I do not think that somebody will fill a milk tank during 12 hours.\r
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