truck rental lot had 20 trucks, all in on monday. if 50% of the trucks that were rented out during the week were returned to the lot on or before saturday morning of that week, and if there were at least 12 trucks on the lot on saturday morning, what is the greatest number of different trucks that could have been rented out during the week?
Problem states that at least 12 trucks should be on the lot on saturday morning. This means remaining 8 trucks have not been returned to the lot, which is 50% of the 16 trucks which have been rented out. This clearly shows that remaining 4 trucks (not rented) on the lot and 50% returned trucks of 16 (which is 8) equal to number 12 (minimum number required on saturday morning). Henc I will go with option B.
If you take 13 trucks applies the same logic above it shows the maximum number as 14 which is not in option hence our number 16 is confirmed maximum number trucks which could have been rented out during week.
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