SOLUTION: A garrison have provisions for certain number of days. After 10 days, 1/5 of the men left and it is found that the provisions will last now just as long as before; how long was th

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Question 318462: A garrison have provisions for certain number of days. After 10 days, 1/5 of the men left and it is found that the provisions will last now just as long as before; how long was that?
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
d/1 = (d - 10)/(4/5)

(4/5)d = d - 10

10 = (1/5)d ___ 50 = d