document.write( "Question 250241: Twice as many people went on the first aquarium tour as the second tour. Three times as many went on the third tour as the second tour. If 90 people went on the third tour, how many went on the first tour? \n" ); document.write( "
Algebra.Com's Answer #182198 by olya(2)\"\" \"About 
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Let say x people went to first tour ,
\n" ); document.write( "Than x/2 = how many people went to second tour,
\n" ); document.write( "and 3*x/2 went to 3rd tour.
\n" ); document.write( "If 3*x/2=90
\n" ); document.write( " 3x=180
\n" ); document.write( " x=60\r
\n" ); document.write( "\n" ); document.write( "60 people went to first tour
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