9th Class Mathematics Chapter 8 TestUNIT 8: Logic

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. The circumference of a circle with radius r is:

   1. 

   2. 

   3. 

   4. None of these

2. 

   1. 

   2. 

   3. 

   4. 

3. The statement " A straight line can be drawn between any two points" is:

   1. Theorem

   2. Conjecture

   3. Axiom

   4. Logic

4. Which of the following expression is often related to inductive reasoning?

   1. Based on repeated experiments

   2. If and only if statements

   3. Statement if proven by a theorem

   4. Based on general principles

5. 

   1. 

   2. 

   3. 

   4. 

6. A sentence or mathematical expression which may be true of false but not both is called:

   1. Argument

   2. Statement

   3. Proof

   4. Check

7. The statement is called:

   1. Conditional 

   2. Biconelitional

   3. Conjunction

   4. Disjunction

8. Contrapositive of is:

   1. 

   2. 

   3. 

   4. 

9. A conditional is regarded as false only when:

   1. Antecedent is true and consequent is false

   2. Consequent is true and antecedent is false

   3. Antecedent is true only

   4. Consequent is false only

10. Which of the following statement is best to represent the negation of the statement "The stove is burning"?

    1. The stove is not burning

    2. The stove is dim

    3. The stove is turned to low heat

    4. It is both burning and not burning