Real numbers medium

Real Numbers Quiz (Medium)

1. Which of the following is not a real number?

a) 5 b) √2 c) i

2. The set of real numbers includes:

a) All rational and irrational numbers b) Only positive numbers c) Only integers

3. Which of the following is a rational number?

a) √2 b) 0.75 c) π

4. Which of the following is an irrational number?

a) 0.5 b) 1 c) √5

5. The decimal representation of a rational number:

a) Is always terminating b) Is always non-repeating c) Is either terminating or repeating

6. Which of the following numbers is neither rational nor irrational?

a) 0 b) 1 c) √0

7. The sum of a rational number and an irrational number is:

a) Always rational b) Always irrational c) Sometimes rational and sometimes irrational

8. The product of a nonzero rational number and an irrational number is:

a) Always rational b) Always irrational c) Sometimes rational and sometimes irrational

9. Which of the following statements is true about the number 0?

a) 0 is a natural number b) 0 is a whole number c) 0 is an integer

10. The number √4 is:

a) Rational b) Irrational c) Natural