EASY
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If p,q,r are statements with truth values T,F,T respectively. Then the truth value of ~rp~q is

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Important Questions on Mathematical Reasoning

MEDIUM

Consider the following three statements:

A If 3+3=7 then 4+3=8

B If 5+3=8 then earth is flat.

C If both A and B are true then 5+6=17.

Then, which of the following statements is correct?

HARD

Consider the following two propositions :
P1~p~q
P2p~q~pq

If the proposition p~pq is evaluated as FALSE, then

EASY
If pp~q is false, then the truth values of p and q are respectively
MEDIUM
If (p~r)(~pq) is false, then the truth values of p, q and r are respectively
EASY
If p~p~q is false, then the truth values of p and q are, respectively
EASY
The maximum number of compound propositions, out of prs, pr~s, p~qs~p~rs, ~p~r~s, ~pq~s, qr~s, q~r~s, ~p~q~s that can be made simultaneously true by an assignment of the truth values to p,q,r and s, is equal to
EASY
Negation of the Boolean statement pq~rp is equivalent to:
MEDIUM
Consider the two statements :
S1 :(pq)(~qp) is a tautology.
S2 :(p~q)(~pq) is a fallacy.
Then :
EASY
If p:4 is an even prime number, q:6 is a divisor of 12 and r: the HCF of 4 and 6 is 2, then which of the following is correct?
MEDIUM
For two statements p and q, the logical statement pqq~p is equivalent to
MEDIUM

Consider the following three statements:

P:5 is a prime number

Q:7 is a factor of 192

R: LCM of 5 and 7 is 35

Then the truth value of which one of the following statements is true?