Answer:
The truth value of p ↔ q is 46.
Explanation:
Option A : The truth value of p ∧ q is 20.
∧ means and
So, we are given that p and q = 20
Since and denotes intersection
And we are given that p ∩ q = 20 which is wrong because p ∩ q = 46
Thus Option A is wrong
Option B : The truth value of q → p is 26.
→ means if p is true then q is true
Thus means if q is 46 thus p should be 46
But we are given that q → p is 26.
Thus it is wrong .
Option C : The truth value of p ↔ q is 46.
↔ means p is true iff q is true
Since we can see that p = 0+46
q = 46
⇒ p=q=46
⇒ p ↔ q is 46.
Thus Option C is correct .
Option D : The truth value of p ∨ q is 6
∨ means or
And or means union
⇒p ∪ q is 6
Which is wrong because p ∪ q = 46
Thus Option C is correct