Question 276966
Let x=number of men needed to finish job in 40 days
40 * x = 40x man-days required
50 * x-25 = 50(x-25) man-days
40x=50(x-25)
40x=50x-1250
-10x=-1250
x=125 number of men needed to finish job in 40 days.
.
Ed