[計量] 數學問題
On week a certain truck rental lot had a total of 20
trucks, all of which were on the lot Monday morning.
If 50 percent of the trucks that were rented out
during the week were returned to the lot on or
before Saturday moring of that week, and if there
were at least 12 trucks on the lot that Saturday
morning, what is the greatest number of different
trucks that could have been rented out during the week?
ANS:16
光是題目就不懂
有好心人可以解釋一下嗎?
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