From a survey of 100 college students, a marketing research company found that 55 students owned iPods, 35 owned cars, and 5 owned both cars and...

From a survey of 100 college students, a marketing research company found that 55 students owned iPods, 35 owned cars, and 5 owned both cars and iPods.

(a) How many students owned either a car or an iPod (but not both)?

(b) How many students do not own either a car or an iPod?