Odd One Out (SSC CHSL 2023 Tier – 1) (Part

Total Questions: 30

11. Four triads of numbers have been given out of which three are alike in some manner and one is different. Select the one that is different. [S.S.C CHSL 11/08/2023 (2nd Shift)]

(a) 25 - 45 - 65
(b) 8 - 28 - 48
(c) 38 - 58 - 78
(d) 17 - 27 - 67

Correct Answer: (d) 17 - 27 - 67

Solution:The pattern followed here is :

(1^st number) + 20 = (2^nd number) and (2^nd number + 20) = 3^rd number
(25 - 45 - 65) → (25 + 20) = 45 and (45 + 20) = 65
(8 - 28 - 48) → (8 + 20) = 28 and (28 + 20) = 48
(38 - 58 - 78) → (38 + 20) = 58 and (58 + 20) = 78
But,

(17 - 27 - 67) → (17 + 20) = 37 (Not 27) and (37 + 20) = 57 (Not 67)

Hence, (17 - 27 - 67) is the correct answer.

12. Three of the following four are alike in a certain way and thus form a group. Which is the one that does NOT belong to that group? [S.S.C CHSL 11/08/2023 (3rd Shift)]

(a) 153 - 17
(b) 261 - 29
(c) 94 - 11
(d) 207 - 23

Correct Answer: (c) 94 - 11

Solution:The pattern followed here is :

(1^st number ÷ 9) = 2^nd number
(153 - 17) → (153 ÷ 9) = 17
(261 - 29) → (261 ÷ 9) = 29
(207 - 23) → (207 ÷ 9) = 23
But

(94 - 11) → (94 ÷ 9) ≠ 11

Hence, (94 - 11) is the correct answer.

13. Four-letter clusters have been given, out of which three are alike in some manner and one is different. Select the one that is different. [S.S.C CHSL 11/08/2023 (3rd Shift)]

(a) TVZB
(b) OPRS
(c) GIMO
(d) JLPR

Correct Answer: (b) OPRS

Solution:The pattern followed here is :

Hence, OPRS is the correct answer.

14. Based on the alphabetical order, three of the following four letter-clusters are alike in a certain way and thus form a group. Which of the following does NOT belong to that group? [S.S.C CHSL 11/08/2023 (4th Shift)]

(a) KMQ
(b) BDH
(c) YAE
(d) JLN

Correct Answer: (d) JLN

Solution:The pattern followed here is :

Hence, JLN is the correct answer.

15. Select the option in which the numbers do NOT share the same relationship as that shared by the given pairs of numbers. [S.S.C CHSL 11/08/2023 (4th Shift)]

32 : 65

35 : 71

(a) 21 : 43
(b) 46 : 93
(c) 17 : 35
(d) 30 : 59

Correct Answer: (d) 30 : 59

Solution:The pattern followed here is :

(1^st number × 2) + 1 = 2^nd number
(32 : 65) → {(32 × 2) + 1} ⇒ (64 + 1) = 65
(35 : 71) → {(35 × 2) + 1} ⇒ (70 + 1) = 71
(21 : 43) → {(21 × 2) + 1} ⇒ (42 + 1) = 43
(46 : 93) → {(46 × 2) + 1} ⇒ (92 + 1) = 93
(17 : 35) → {(17 × 2) + 1} ⇒ (34 + 1) = 35
But,

(30 : 59) → {(30 × 2) + 1} ⇒ (60 + 1) = 61 (Not 59)

Hence, (30 : 59) is the correct answer.

16. Select the word-pair that does NOT represent a similar relationship to the one expressed in the pair of words given below. [S.S.C CHSL 11/08/2023 (4th Shift)]

Astonishing : Incredible

(a) Clarify : Elaborate
(b) Descend : Ascend
(c) Stop : Terminate
(d) Brave : Fearless

Correct Answer: (b) Descend : Ascend

Solution:Astonishing is the synonym of Incredible.
All the given options are synonyms of each other, except the option b, in which ‘descend’ and ‘ascend’ are opposite to each other.

17. The second number in the given number pairs is obtained by performing certain mathematical operations on the first number. The same operations are followed in all the number pairs except one. Find that odd number pair. [S.S.C CHSL 14/08/2023 (1st Shift)]

(NOTE: Operations should be performed on whole numbers, without breaking down the numbers into their constituent digits.)

(a) 31 : 215
(b) 29 : 201
(c) 21 : 145
(d) 25 : 177

Correct Answer: (d) 25 : 177

Solution:The pattern followed here is :

{(1^st number × 7) - 2} = 2^nd number
(31 : 215) → {(31 × 7) - 2} ⇒ (217 - 2) = 215
(29 : 201) → {(29 × 7) - 2} ⇒ (203 - 2) = 201
(21 : 145) → {(21 × 7) - 2} ⇒ (147 - 2) = 145
But,

(25 : 177) → {(25 × 7) - 2} ⇒ (175 - 2) = 173 (Not 177)

Hence, (25 : 177) is the correct answer.

18. Based on the alphabetical order, three of the following four are alike in a certain way and thus form a group. Which is the one that does NOT belong to that group? [S.S.C CHSL 14/08/2023 (1st Shift)]

(a) QMS
(b) HDC
(c) VRX
(d) DZF

Correct Answer: (b) HDC

Solution:The pattern followed here is :

Hence, HDC is the correct answer.

19. Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the one that is different. [S.S.C CHSL 14/08/2023 (1st Shift)]

(a) 216 : 40
(b) 112 : 32
(c) 312 : 82
(d) 72 : 22

Correct Answer: (a) 216 : 40

Solution:The pattern followed here is :
{(2^nd number × 4) - 16} = 1^st number
(72 : 22) → {(22 × 4) - 16} ⇒ (88 - 16) = 72
(112 : 32) → {(32 × 4) - 16} ⇒ (128 - 16) = 112
(312 : 82) → {(82 × 4) - 16} ⇒ (328 - 16) = 312
But,

(216 : 40) → {(40 × 4) - 16} ⇒ (160 - 16) = 144 (Not 216)

Hence, (216 : 40) is the correct answer.

20. Three of the following number triads are alike in some manner and one is different. Select the odd number triads. [S.S.C CHSL 14/08/2023 (2nd Shift)]

(NOTE: The second and third numbers in the given number triads are formed by performing a certain operation on the first number. The same operation is followed in all the number triads except one. Find that odd number triads.)

(a) 4 : 16 : 12
(b) 15 : 225 : 210
(c) 11 : 121 : 110
(d) 7 : 49 : 40

Correct Answer: (d) 7 : 49 : 40

Solution:The pattern followed here is :
(1^st number)² = 2^nd number and (2^nd number - 1^stnumber) = 3^rd number
(4 : 16 : 12) → (4)² = 16 and (16 - 4) = 12
(15 : 225 : 210) → (15)² = 225 and (225 - 210) = 15
(11 : 121 : 110) → (11)² = 121 and (121 - 110) = 11
But,

(7 : 49 : 40) → (7)² = 49 and (49 - 40) = 9 ≠ 7

Hence, (7 : 49 : 40) is the correct answer.

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Odd One Out (SSC CHSL 2023 Tier – 1) (Part – II)

11. Four triads of numbers have been given out of which three are alike in some manner and one is different. Select the one that is different. [S.S.C CHSL 11/08/2023 (2nd Shift)]

12. Three of the following four are alike in a certain way and thus form a group. Which is the one that does NOT belong to that group? [S.S.C CHSL 11/08/2023 (3rd Shift)]

13. Four-letter clusters have been given, out of which three are alike in some manner and one is different. Select the one that is different. [S.S.C CHSL 11/08/2023 (3rd Shift)]

14. Based on the alphabetical order, three of the following four letter-clusters are alike in a certain way and thus form a group. Which of the following does NOT belong to that group? [S.S.C CHSL 11/08/2023 (4th Shift)]

15. Select the option in which the numbers do NOT share the same relationship as that shared by the given pairs of numbers. [S.S.C CHSL 11/08/2023 (4th Shift)]

16. Select the word-pair that does NOT represent a similar relationship to the one expressed in the pair of words given below. [S.S.C CHSL 11/08/2023 (4th Shift)]

17. The second number in the given number pairs is obtained by performing certain mathematical operations on the first number. The same operations are followed in all the number pairs except one. Find that odd number pair. [S.S.C CHSL 14/08/2023 (1st Shift)]

18. Based on the alphabetical order, three of the following four are alike in a certain way and thus form a group. Which is the one that does NOT belong to that group? [S.S.C CHSL 14/08/2023 (1st Shift)]

19. Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the one that is different. [S.S.C CHSL 14/08/2023 (1st Shift)]

20. Three of the following number triads are alike in some manner and one is different. Select the odd number triads. [S.S.C CHSL 14/08/2023 (2nd Shift)]

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