#1. Which of the following is an irrational number?

0.25

√4

√5

3/4

#2. Which of the following is a rational number?

√3

π

0.121212…

√7

#3. Which of the following is irrational?

22/7

√9

√10

0.5

#4. The product of a non-zero rational and irrational number is:

Always rational

Always irrational

Integer

Whole number

#5. √2 is:

Rational

Irrational

Integer

Whole

#6. π is:

Rational

Irrational

Integer

Whole

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

Rational

Irrational

Integer

Whole

#8. Which is not rational?

5/2

0.75

√3

-1

#9. 0.333… is:

Irrational

Rational

Integer

Whole

#10. √0 is:

1

0

-1

Undefined

#11. Which is irrational?

√6

6

1/6

0.6

#12. Which is irrational?

0.25

√11

5/2

0.5

#13. The sum of two irrational numbers is:

Always rational

Always irrational

May be rational or irrational

Integer

#14. Which is a rational number?

√7

π

0.125

√2

#15. Which is irrational?

√13

13

1/13

0.13

#16. Which is irrational?

√17

17

17/1

0.17

#17. Which is rational?

√19

π

0.75

√2

#18. Which is irrational?

√23

23

23/1

0.23

#19. Which is real?

√(-4)

√5

Undefined

None

#20. Which is not rational?

0.2

1/2

√7

2

#21. Which is irrational?

√29

29

29/1

0.29

#22. Which is rational?

√31

π

0.6

√2

#23. Which is irrational?

√37

37

37/1

0.37

#24. Which is real?

√(-9)

√8

Undefined

None

#25. Which is irrational?

√41

41

41/1

0.41

#26. Which of the following is an irrational number?

0.16

4/5

√18

2.25

#27. Which of the following is rational?

√12

√25

√7

π

#28. Which of the following is irrational?

√20

20

5

4/5

#29. The sum of two rational numbers is:

Always irrational

Always rational

Integer

Whole number

#30. Which is irrational?

√50

50

25

5/2

#31. Which is a rational number?

√15

π

0.625

√11

#32. Which of the following is irrational?

√27

27

9

3

#33. Which is irrational?

√45

45

15

3

#34. The product of two irrational numbers is:

Always irrational

Always rational

May be rational or irrational

Integer

#35. Which is irrational?

√32

32

16

8

#36. Which is rational?

√19

π

0.875

√13

#37. Which is irrational?

√72

72

36

6

#38. Which is irrational?

√75

75

25

5

#39. Which is not rational?

2/5

0.4

√2

5

#40. Which is irrational?

√80

80

40

20

#41. Which is rational?

√17

π

0.2

√11

#42. Which is irrational?

√98

98

49

7

#43. Which is irrational?

√108

108

36

12

#44. Which is irrational?

√200

200

100

10

#45. Which is rational?

√21

π

0.45

√14

#46. Which is irrational?

√242

242

121

11

#47. Which is irrational?

√300

300

150

30

#48. Which is rational?

√23

π

0.125

√19

#49. Which is irrational?

√320

320

160

40

#50. Which is not rational?

3/7

0.3

√5

2

#51. Which of the following is irrational?

√121

√50

11

0.5

#52. Which is irrational?

√64

√18

8

0.125

#53. Which is a rational number?

√7

π

0.875

√3

#54. Which is irrational?

√98

49

7

0.7

#55. Which is irrational?

√81

√20

9

0.9

#56. Which is irrational?

√45

45

9

3

#57. Which is irrational?

√121

√72

11

0.11

#58. Which is irrational?

√100

√27

10

0.2

#59. Which is irrational?

√36

√50

6

0.6

#60. Which is irrational?

√49

√63

7

0.7

#61. Which is irrational?

√16

√80

4

0.4

#62. Which is irrational?

√25

√75

5

0.5

#63. Which is irrational?

√144

√96

12

0.12

#64. Which is irrational?

√169

√99

13

0.13

#65. Which is irrational?

√196

√125

14

0.14

#66. Which is irrational?

√225

√147

15

0.15

#67. Which is irrational?

√256

√175

16

0.16

#68. If √2 is irrational, then 3√2 is:

Rational

Irrational

Integer

Whole number

#69. If p/q is a rational number, then q ≠ 0 because:

Division by zero is undefined

It becomes irrational

It becomes integer

It becomes whole

#70. Which of the following is irrational?

√121

√169

√50

√144

#71. Which of the following is rational?

√2

√3

√49

π

#72. Which is irrational?

√0.04

√2

0.2

1/5

#73. The product of a non-zero rational number and an irrational number is:

Rational

Irrational

Integer

Whole

#74. Which of the following is irrational?

√81

√36

√18

9

#75. Between any two rational numbers there are:

No rational numbers

One rational number

Infinite rational numbers

Only integers

#76. The sum of two irrational numbers can be:

Always irrational

Always rational

Rational or irrational

Integer only

#77. Which of the following is irrational?

√64

√100

√7

10

#78. Which is irrational?

√49

√121

√11

7

#79. Which is rational?

√13

π

0.375

√17

#80. Between any two irrational numbers there are:

No irrational numbers

One irrational number

Infinite irrational numbers

Only rational numbers

#81. Which is irrational?

√144

√225

√19

15

#82. Which of the following is irrational?

√256

√36

√15

16

#83. Which is irrational?

√121

√169

√14

13

#84. The product of two rational numbers is:

Always irrational

Always rational

Integer only

Whole only

#85. Which is irrational?

√324

√81

√22

18

#86. Which is rational?

√23

π

0.625

√19

#87. Which is irrational?

√400

√196

√26

20

#88. Which is not rational?

3/4

0.75

√5

2

#89. Which is irrational?

√441

√64

√28

21

#90. Which is irrational?

√529

√361

√30

23

#91. Which is rational?

√29

π

0.2

√31

#92. The sum of a rational and irrational number is:

Rational

Irrational

Integer

Whole

#93. Which is irrational?

√900

√100

√33

30

#94. Which is irrational?

√729

√49

√35

27

#95. Which is rational?

√41

π

0.875

√43

#96. Which is irrational?

√1024

√256

√38

32

#97. Which is not rational?

5/8

0.625

√7

3

Rational and Irrational Numbers MCQ Questions and Answers

Results

#1. Which of the following is an irrational number?

#2. Which of the following is a rational number?

#3. Which of the following is irrational?

#4. The product of a non-zero rational and irrational number is:

#5. √2 is:

#6. π is:

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

#8. Which is not rational?

#9. 0.333… is:

#10. √0 is:

#11. Which is irrational?

#12. Which is irrational?

#13. The sum of two irrational numbers is:

#14. Which is a rational number?

#15. Which is irrational?

#16. Which is irrational?

#17. Which is rational?

#18. Which is irrational?

#19. Which is real?

#20. Which is not rational?

#21. Which is irrational?

#22. Which is rational?

#23. Which is irrational?

#24. Which is real?

#25. Which is irrational?

#26. Which of the following is an irrational number?

#27. Which of the following is rational?

#28. Which of the following is irrational?

#29. The sum of two rational numbers is:

#30. Which is irrational?

#31. Which is a rational number?

#32. Which of the following is irrational?

#33. Which is irrational?

#34. The product of two irrational numbers is:

#35. Which is irrational?

#36. Which is rational?

#37. Which is irrational?

#38. Which is irrational?

#39. Which is not rational?

#40. Which is irrational?

#41. Which is rational?

#42. Which is irrational?

#43. Which is irrational?

#44. Which is irrational?

#45. Which is rational?

#46. Which is irrational?

#47. Which is irrational?

#48. Which is rational?

#49. Which is irrational?

#50. Which is not rational?

#51. Which of the following is irrational?

#52. Which is irrational?

#53. Which is a rational number?

#54. Which is irrational?

#55. Which is irrational?

#56. Which is irrational?

#57. Which is irrational?

#58. Which is irrational?

#59. Which is irrational?

#60. Which is irrational?

#61. Which is irrational?

#62. Which is irrational?

#63. Which is irrational?

#64. Which is irrational?

#65. Which is irrational?

#66. Which is irrational?

#67. Which is irrational?

#68. If √2 is irrational, then 3√2 is:

#69. If p/q is a rational number, then q ≠ 0 because:

#70. Which of the following is irrational?

#71. Which of the following is rational?

#72. Which is irrational?

#73. The product of a non-zero rational number and an irrational number is:

#74. Which of the following is irrational?

#75. Between any two rational numbers there are:

#76. The sum of two irrational numbers can be:

#77. Which of the following is irrational?

#78. Which is irrational?