Math130 help
posted by Enis on .
In Paul's bicycle shop 40 bikes are needed new tires and 27 needed gear repairs, what is the greatest number of bikes could have neede both and the least number of bikes that could have needed both

max is 27
all 27 needing gears also need tires
min is 0
say he had 100 bikes.
40 need tires
27 need gears
0 need both.