Awoman drives an suv that gets 1212 mi/gal (mpg). her husband drives a hybrid that gets mpg. every week, they travel the same number of miles. they want to improve their combined mpg. they have two options on how they can improve it.
option 1: they can tune the suv and increase its mileage by 11 mpg and keep the hybrid as it is.
option 2: they can buy a new hybrid that gets 8080 mpg and keep the suv as it is.
which option will give them a better combined mpg?