document.write( "Question 313795: A reservoir has 3 sources of water. Source A can fill the reservoir in 2 days, source B in 3 days and source C in 6 days. How long would it take to fill the reservoir using all 3 sources? \n" ); document.write( "
Algebra.Com's Answer #224377 by rapaljer(4671)\"\" \"About 
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Let x = time it will take for all three sources to fill the reservoir.\r
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\n" ); document.write( "\n" ); document.write( "In 1 hour, source A can fill 1/2 of it, source B can fill 1/3 of it, source C can fill 1/6 of it, and all sources together can fill 1/x of it. The equation is:\r
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\n" ); document.write( "\n" ); document.write( "\"1%2F2+%2B1%2F3+%2B1%2F6=1%2Fx\"\r
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\n" ); document.write( "\n" ); document.write( "Multiply both sides by 6x:
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\n" ); document.write( "\"3x+%2B2x+%2Bx=6\"
\n" ); document.write( "\"6x=6\"
\n" ); document.write( "\"x=1\" hour to fill with all sources.\r
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\n" ); document.write( "\n" ); document.write( "Dr. Robert J. Rapalje, Retired
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