Question

Let p: A car has automatic windows.
Let q: A car has automatic seats.



p v q is true for a total of how many cars?

40
54
66
80

Answer 1

I don’t have enough information to pick one of those choices. To find how many cars satisfy p ∨ q (have automatic windows or automatic seats), you need the counts of:

- |p| = number of cars with automatic windows,
- |q| = number of cars with automatic seats,
- |p ∧ q| = number of cars with both.

Then use the inclusion–exclusion formula:
|p ∨ q| = |p| + |q| − |p ∧ q|.

If you give the three counts (or a Venn diagram / survey data), I’ll compute which of 40, 54, 66, 80 is correct.