document.write( "Question 864197: a water tank is being filled by two inlet pipes. pipe A can fill the tank three times as fast as pipe B. both pipes can fill the tank in 4 hours. how long does it take to fill the tank using only pipe B? \n" ); document.write( "
Algebra.Com's Answer #521011 by richwmiller(17219)\"\" \"About 
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1/p+1/3p=1/4\r
\n" ); document.write( "\n" ); document.write( "3/3p+1/3p=1/4
\n" ); document.write( "4/3p=1/4
\n" ); document.write( "16=3p pipe B
\n" ); document.write( "16/3=p pipe A\r
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