document.write( "Question 832173: a tank is filled by 6 pipes with uniforms flow in one hour.In which time 4 pipes can filled the tank at same flow? \n" ); document.write( "
Algebra.Com's Answer #501892 by jean14(9)\"\" \"About 
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We use inverse proportion.(the more pipes use the less time use to fill tanks and vise versa.)
\n" ); document.write( "Step 1. Write down the ratio in types of term.( no. Of pipes and time/hour)\r
\n" ); document.write( "\n" ); document.write( "no. Of pipes time (hr)
\n" ); document.write( " 6 1
\n" ); document.write( " 4 x
\n" ); document.write( "Step 2. Invert one of the ratios. (flip it upside down. Then multiply, divide and solve.\r
\n" ); document.write( "\n" ); document.write( "4/6 = 1/x cross multiply
\n" ); document.write( "4x = 6 divide both terms by 4 to get the value of x
\n" ); document.write( "x = 6/4 or 1 1/2 hr \r
\n" ); document.write( "\n" ); document.write( "Threfore, it will took 1 1/2 hrs for the 4 pipes to fill the tank w/ same flow
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