Let p ,   q ,   r be three statements such that the truth value of p ∧ q → ~ q ∨…

Let p, q, r be three statements such that the truth value of pq~qr is F . Then the truth values of p, q, r are respectively :
  1. T, T, F
  2. T, T, T
  3. T, F, T
  4. F, T, F

Solution

Given that the truth value of pq~qr is F .

For the above truth value to be possible, pq should be TRUE and ~qr should be FALSE.

pq is TRUE when p & q both are TRUE.

~qr is FALSE when q is TRUE and r is FALSE.

So, the truth values of p, q, r are T, T, F respectively.

Asked in: MHT CET Full Test 5

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