Question 1143326
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The calculation you performed indicates that when the number of hours is reduced by a factor of 24 the number of men required is also reduced by a factor of 24.<br>
That of course goes against common sense.  As the time decreases by some factor, the number of men required increases by that factor.<br>
12 men times 24 hours = 288 man-hours
x men times 1 hour = 288 man-hours  -->  x = 288<br>
or just...
12*24 = x*1
288 = x<br>