A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results were as follows:
26 said they drove alone.
25 rode in a carpool.
32 rode public transportation.
3 used both carpools and public transportation.
3 used both a carpool and sometimes their own cars.
4 used buses as well as their own cars.
1 used all three methods.
How many used none of the above-mentioned means of transportation?

Question

A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results were as follows:
26		said they drove alone.
25		rode in a carpool.
32		rode public transportation.
3		used both carpools and public transportation.
3		used both a carpool and sometimes their own cars.
4		used buses as well as their own cars.
1		used all three methods.
How many used none of the above-mentioned means of transportation?