document.write( "Question 498803: The erection of a tower takes 24 men to complete in 15 days. How many days will it take 9 men to erect if they work at the same rate? \n" ); document.write( "
Algebra.Com's Answer #337178 by ptaylor(2198)\"\" \"About 
You can put this solution on YOUR website!
If 24 men can complete the tower in 15 days, there are 24*15=360 man-days of labor involved in the project\r
\n" ); document.write( "\n" ); document.write( "In other words, 1 man can complete the project in 360 days.
\n" ); document.write( "9 men can complete the job in 360/9=40 days
\n" ); document.write( "And, of course, it takes 24 men 360/24=15 days to complete the job
\n" ); document.write( "Another way:
\n" ); document.write( "Let x=number of days it takes 9 men to do the job
\n" ); document.write( "The men work at the rate of 1/360 of the project per day
\n" ); document.write( "so, (9/360)*x=1 (1 tower, that is)
\n" ); document.write( "9x=360
\n" ); document.write( "x=40 days\r
\n" ); document.write( "\n" ); document.write( "Hope this helps---ptaylor\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
\n" );