POTWA Pet Problem
- Author:
- CEMC
There are 30 students in Ms. Chan’s class. They were discussing their pets. They were asked three questions and the results are shown in the table below:
How many students have neither cats nor dogs at home?
| Question | Number of Students Who Answered Yes |
| Do you have at least one dog at home? | 16 |
| Do you have at least one cat at home? | 19 |
| Do you have both at least one cat and at least one dog at home? | 11 |