document.write( "Question 489756: If 3 people can do a job in 20 hours how long would it take 4 people to do the same job.\r
\n" ); document.write( "\n" ); document.write( "I tried a ratio: 3 is to 4 as 20 is to x (3/4 =20/x) = 60/4x divide each side by 4 and x is 15. Am I on the right track? \n" ); document.write( "

Algebra.Com's Answer #333747 by Gogonati(855) $\"\"$ $\"About$

You can put this solution on YOUR website!
You are on the right track because the quantities in this problem are into inverse proportion.
\n" ); document.write( "x*y=k<=>k=20*3=60, and 4*x=60<=> x=15. \n" ); document.write( "

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