Question 1 :
State whether true or false.The sum of the interior angles of a quadrilateral is $350^o$.
Question 2 :
The contrapositive of "if $x$ has courage then $x$ will win", is<br>
Question 3 :
If truth values of $p$ be $F$ and $q$ be $T$. Then, truth value of $\sim (\sim p\vee q)$ is
Question 5 :
The disjunction of the statements, "It is raining; The sun is shining" is<br>
Question 8 :
The converse of "If $x$ has courage, then $x$ will win", is<br>
Question 9 :
The converse of "if $x\in A\cap B$ then $x\in A$ and $x\in B$", is<br>
Question 10 :
State whether the following statement is True or False.<br>All even numbers are composite numbers.
Question 11 :
Which of the following is the converse of the statement: "If x>4 then x+2>5"?
Question 12 :
If p : A man is happy<br> q : A man is rich<br>Then, the statement, "If a man is not happy, then he is not rich" is written as
Question 13 :
The converse of "if in a triangle $ABC, AB>AC$, then $\angle C=\angle B$", is<br>
Question 14 :
The contrapositive of "If $x\in A\cup B$, then $x\in A$ or $x\in B$", is<br>
Question 15 :
The contrapositive of : "If two triangles are congruent then they are similar" is<br/>
Question 16 :
I had Rs. 200 with me. I gave Rs. x to Anwar, Rs. $\displaystyle \frac{x}{2}$ to Vidhu and I am left with Rs $\displaystyle \frac{x}{2}$. The amount I gave to vidhu is ..........
Question 17 :
What is true about the statement "If two angles are right angles the angles have equal measure" and its converse "If two angles have equal measure then the two angles are right angles"?
Question 18 :
Which of the following statements is the inverse<b> </b>of "If you do not understand geometry, then you do not know how to reason deductively."?
Question 19 :
If statement $p \rightarrow (q \vee r)$ is true then the truth values of statements p, q, r respectively
Question 20 :
Find the counter example of the .statement "Every natural number is either prime or composite''.
