OU All In One

Odd One Out questions

Classification of numbers and words.

1. Find the odd one out: 49, 42, 22, 63

  1. 22
  2. 49
  3. 63
  4. 42
Answer

A. 22 All except 22 are multiples of 7.

2. Find the odd one out: Rhombus, Triangle, Square, Rectangle

  1. Rectangle
  2. Square
  3. Triangle
  4. Rhombus
Answer

C. Triangle A triangle has three sides; the others have four.

3. Find the odd one out: 41, 27, 53, 13

  1. 53
  2. 27
  3. 13
  4. 41
Answer

B. 27 27 is not prime (27 is divisible by 3); the others are prime.

4. Find the odd one out: Rose, Mango, Lily, Lotus

  1. Lily
  2. Rose
  3. Mango
  4. Lotus
Answer

C. Mango Mango is a fruit; the others are flowers.

5. Find the odd one out: 36, 90, 100, 25

  1. 25
  2. 90
  3. 100
  4. 36
Answer

B. 90 90 is not a perfect square; the others are.

6. Find the odd one out: Bengaluru, Telangana, Hyderabad, Chennai

  1. Chennai
  2. Bengaluru
  3. Telangana
  4. Hyderabad
Answer

C. Telangana Telangana is a state; the others are cities.

7. Find the odd one out: 99, 144, 16, 64

  1. 99
  2. 144
  3. 64
  4. 16
Answer

A. 99 99 is not a perfect square; the others are.

8. Find the odd one out: Chennai, Telangana, Hyderabad, Bengaluru

  1. Bengaluru
  2. Chennai
  3. Telangana
  4. Hyderabad
Answer

C. Telangana Telangana is a state; the others are cities.

9. Find the odd one out: 59, 18, 27, 54

  1. 54
  2. 27
  3. 59
  4. 18
Answer

C. 59 All except 59 are multiples of 9.

10. Find the odd one out: Keyboard, Mouse, Printer, Scanner

  1. Keyboard
  2. Printer
  3. Scanner
  4. Mouse
Answer

B. Printer A printer is an output device; the others are input devices.

11. Find the odd one out: 43, 15, 37, 13

  1. 37
  2. 43
  3. 13
  4. 15
Answer

D. 15 15 is not prime (15 is divisible by 3); the others are prime.

12. Find the odd one out: Python, Viper, Cobra, Crocodile

  1. Crocodile
  2. Python
  3. Cobra
  4. Viper
Answer

A. Crocodile A crocodile is not a snake.

13. Find the odd one out: 23, 27, 17, 47

  1. 23
  2. 47
  3. 17
  4. 27
Answer

D. 27 27 is not prime (27 is divisible by 3); the others are prime.

14. Find the odd one out: Telangana, Bengaluru, Chennai, Hyderabad

  1. Bengaluru
  2. Chennai
  3. Hyderabad
  4. Telangana
Answer

D. Telangana Telangana is a state; the others are cities.

15. Find the odd one out: 18, 56, 81, 99

  1. 18
  2. 99
  3. 81
  4. 56
Answer

D. 56 All except 56 are multiples of 9.

16. Find the odd one out: Gallon, Millilitre, Litre, Kilogram

  1. Millilitre
  2. Litre
  3. Gallon
  4. Kilogram
Answer

D. Kilogram Kilogram measures mass; the others measure volume.

17. Find the odd one out: 19, 53, 35, 11

  1. 11
  2. 19
  3. 35
  4. 53
Answer

C. 35 35 is not prime (35 is divisible by 5); the others are prime.

18. Find the odd one out: Moon, Mercury, Venus, Mars

  1. Mars
  2. Mercury
  3. Venus
  4. Moon
Answer

D. Moon The Moon is a satellite; the others are planets.

19. Find the odd one out: 41, 13, 43, 51

  1. 43
  2. 13
  3. 41
  4. 51
Answer

D. 51 51 is not prime (51 is divisible by 3); the others are prime.

20. Find the odd one out: Python, Cobra, Viper, Crocodile

  1. Crocodile
  2. Viper
  3. Python
  4. Cobra
Answer

A. Crocodile A crocodile is not a snake.

21. Find the odd one out: 49, 36, 25, 32

  1. 49
  2. 32
  3. 36
  4. 25
Answer

B. 32 32 is not a perfect square; the others are.

22. Find the odd one out: Mouse, Keyboard, Printer, Scanner

  1. Scanner
  2. Printer
  3. Mouse
  4. Keyboard
Answer

B. Printer A printer is an output device; the others are input devices.

23. Find the odd one out: 47, 23, 57, 53

  1. 47
  2. 53
  3. 57
  4. 23
Answer

C. 57 57 is not prime (57 is divisible by 3); the others are prime.

24. Find the odd one out: Python, Java, Linux, Ruby

  1. Ruby
  2. Java
  3. Linux
  4. Python
Answer

C. Linux Linux is an operating system; the others are programming languages.

25. Find the odd one out: 36, 63, 99, 83

  1. 36
  2. 99
  3. 83
  4. 63
Answer

C. 83 All except 83 are multiples of 9.

26. Find the odd one out: Mango, Lotus, Lily, Rose

  1. Mango
  2. Lily
  3. Rose
  4. Lotus
Answer

A. Mango Mango is a fruit; the others are flowers.

27. Find the odd one out: 99, 54, 70, 18

  1. 18
  2. 70
  3. 54
  4. 99
Answer

B. 70 All except 70 are multiples of 9.

28. Find the odd one out: 100, 50, 64, 121

  1. 121
  2. 100
  3. 64
  4. 50
Answer

D. 50 50 is not a perfect square; the others are.

29. Find the odd one out: 13, 19, 17, 39

  1. 13
  2. 19
  3. 39
  4. 17
Answer

C. 39 39 is not prime (39 is divisible by 3); the others are prime.

30. Find the odd one out: 16, 45, 81, 121

  1. 16
  2. 45
  3. 81
  4. 121
Answer

B. 45 45 is not a perfect square; the others are.

31. Find the odd one out: 21, 41, 37, 53

  1. 53
  2. 41
  3. 37
  4. 21
Answer

D. 21 21 is not prime (21 is divisible by 3); the others are prime.

32. Find the odd one out: 21, 19, 41, 43

  1. 41
  2. 43
  3. 21
  4. 19
Answer

C. 21 21 is not prime (21 is divisible by 3); the others are prime.

33. Find the odd one out: 121, 16, 50, 49

  1. 121
  2. 16
  3. 49
  4. 50
Answer

D. 50 50 is not a perfect square; the others are.

34. Find the odd one out: 35, 77, 32, 49

  1. 77
  2. 49
  3. 35
  4. 32
Answer

D. 32 All except 32 are multiples of 7.

35. Find the odd one out: 64, 36, 90, 121

  1. 90
  2. 36
  3. 121
  4. 64
Answer

A. 90 90 is not a perfect square; the others are.

36. Find the odd one out: 39, 29, 13, 17

  1. 13
  2. 39
  3. 29
  4. 17
Answer

B. 39 39 is not prime (39 is divisible by 3); the others are prime.

37. Find the odd one out: 144, 121, 36, 32

  1. 144
  2. 121
  3. 36
  4. 32
Answer

D. 32 32 is not a perfect square; the others are.

38. Find the odd one out: 72, 28, 54, 99

  1. 54
  2. 72
  3. 28
  4. 99
Answer

C. 28 All except 28 are multiples of 9.

39. Find the odd one out: 36, 53, 18, 45

  1. 45
  2. 18
  3. 53
  4. 36
Answer

C. 53 All except 53 are multiples of 9.

40. Find the odd one out: 144, 50, 25, 49

  1. 49
  2. 144
  3. 25
  4. 50
Answer

D. 50 50 is not a perfect square; the others are.

41. Find the odd one out: 23, 11, 15, 19

  1. 11
  2. 23
  3. 19
  4. 15
Answer

D. 15 15 is not prime (15 is divisible by 3); the others are prime.

42. Find the odd one out: 63, 45, 48, 99

  1. 63
  2. 45
  3. 99
  4. 48
Answer

D. 48 All except 48 are multiples of 9.

43. Find the odd one out: 27, 47, 41, 43

  1. 27
  2. 41
  3. 47
  4. 43
Answer

A. 27 27 is not prime (27 is divisible by 3); the others are prime.

44. Find the odd one out: 30, 36, 48, 14

  1. 48
  2. 30
  3. 14
  4. 36
Answer

C. 14 All except 14 are multiples of 6.

45. Find the odd one out: 25, 81, 45, 100

  1. 81
  2. 45
  3. 25
  4. 100
Answer

B. 45 45 is not a perfect square; the others are.

46. Find the odd one out: 36, 49, 32, 121

  1. 49
  2. 32
  3. 121
  4. 36
Answer

B. 32 32 is not a perfect square; the others are.

47. Find the odd one out: 60, 25, 144, 121

  1. 60
  2. 144
  3. 25
  4. 121
Answer

A. 60 60 is not a perfect square; the others are.

48. Find the odd one out: 18, 67, 36, 72

  1. 18
  2. 36
  3. 67
  4. 72
Answer

C. 67 All except 67 are multiples of 9.

49. Find the odd one out: 100, 60, 36, 144

  1. 60
  2. 100
  3. 36
  4. 144
Answer

A. 60 60 is not a perfect square; the others are.

50. Find the odd one out: 49, 50, 121, 144

  1. 144
  2. 121
  3. 49
  4. 50
Answer

D. 50 50 is not a perfect square; the others are.

Mock test

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