document.write( "Question 1097402: there are 540 passengers on a plane, half of them are above 40, one third are in the age group of 20 to 40 and the rest are below 20 what fraction of all the passengers is below 20 \n" ); document.write( "

Algebra.Com's Answer #711865 by Fombitz(32388) $\"\"$ $\"About$

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$\"1%2F2%2B1%2F3%2BX=1\"$
\n" ); document.write( "Multiply both sides by 6,
\n" ); document.write( " $\"3%2B2%2B6X=6\"$
\n" ); document.write( " $\"6X=1\"$
\n" ); document.write( " $\"X=1%2F6\"$
\n" ); document.write( " \n" ); document.write( "

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