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

Total Questions: 50

41. 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 09/08/2023 (1st Shift)]

(a) 2 - 8
(b) 4 - 125
(c) 3 - 64
(d) 6 - 343

Correct Answer: (a) 2 - 8

Solution:The pattern followed here is :

(1^st number + 1)³ = 2^nd number
(4 - 125) → (4 + 1)³ ⇒ 5³ = 125
(3 - 64) → (3 + 1)³ ⇒ 4³ = 64
(6 - 343) → (6 + 1)³ ⇒ 7³ = 343
But,

(2 - 8) → (2 + 1)³ ⇒ 3³ = 27 (Not 8)

Hence, (2 - 8) is the correct answer.

42. 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 09/08/2023 (1st Shift)]

(a) NRT
(b) LPR
(c) EIK
(d) BFI

Correct Answer: (d) BFI

Solution:The pattern followed here is :

Hence, BFI is the correct answer.

43. Three of the following four are alike in a certain way and thus form a group. Which is one that does NOT belong to that group? [S.S.C CHSL 09/08/2023 (2nd Shift)]

(a) JMN
(b) HKL
(c) CGH
(d) PST

Correct Answer: (c) CGH

Solution:The pattern followed here is :

Hence, CGH is the correct answer.

44. The second number in the given number pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) are followed in all the number pairs except one. Find the odd number pair. [S.S.C CHSL 09/08/2023 (2nd Shift)]

(a) 5 : 13
(b) 2 : 6
(c) 3 : 9
(d) 6 : 15

Correct Answer: (b) 2 : 6

Solution:Logic: (1st number × 2) + 3 = 2nd number
5 : 13 → (5 × 2) + 3 = 10 + 3 = 13
3 : 9 → (3 × 2) + 3 = 6 + 3 = 9
6 : 15 → (6 × 2) + 3 = 12 + 3 = 15
But, 2 : 6 → (2 × 2) + 3 = 4 + 3 = 7 (Not 6)

45. 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 09/08/2023 (2nd Shift)]

(a) 14 : 210
(b) 25 : 650
(c) 11 : 132
(d) 19 : 342

Correct Answer: (d) 19 : 342

Solution:The pattern followed here is :

(1^st number)² + (1^st number) = 2^nd number
(14 : 210) → {(14)² + 14} ⇒ 196 + 14 = 210
(25 : 650) → {(25)² + 25} ⇒ 625 + 25 = 650
(11 : 132) → {(11)² + 11} ⇒ 121 + 11 = 132
But,

(19 : 342) → {(19)² + 19} ⇒ 361 + 19 = 380 (Not 342)

Hence, (19 : 342) is the correct answer.

46. Three of the following four letter clusters 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 09/08/2023 (3rd Shift)]

(a) BEF
(b) SUV
(c) KNO
(d) XAB

Correct Answer: (b) SUV

Solution:The pattern followed here is :

Hence, SUV is the correct answer.

47. 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 09/08/2023 (3rd Shift)]

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

(a) 14 - 44 - 29
(b) 36 - 66 - 51
(c) 29 - 44 - 14
(d) 21 - 51 - 36

Correct Answer: (c) 29 - 44 - 14

Solution:The pattern followed here is :

(1^st number + 2^nd number) ÷ 2 = 3^rd number
(14 - 44 - 29) → {(14 + 44) ÷ 2} ⇒ (58 ÷ 2) = 29
(36 - 66 - 51) → {(36 + 66) ÷ 2} ⇒ 102 ÷ 2) = 51
(21 - 51 - 36) → {(21 + 51) ÷ 2} ⇒ (72 ÷ 2) = 36
But,

(29 - 44 - 14) → {(29 + 44) ÷ 2} ⇒ (73 ÷ 2) = 36.5 ≠ 14

Hence, (29 - 44 - 14) is the correct answer.

48. 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 09/08/2023 (3rd Shift)]

(a) 52 : 93
(b) 40 : 69
(c) 38 : 65
(d) 61 : 133

Correct Answer: (d) 61 : 133

Solution:The pattern followed here is :

{(1^st number × 2) - 11} = 2^nd number
(40 : 69) → {(40 × 2) - 11} ⇒ (80 - 11) = 69
(52 : 93) → {(52 × 2) - 11} ⇒ (104 - 11) = 93
(38 : 65) → {(38 × 2) - 11} ⇒ (76 - 11) = 65

But,
(61 : 133) → {(61 × 2) - 11} ⇒ (122 - 11) = 111(Not 133)

Hence, (61 : 133) is the correct answer.

49. 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 09/08/2023 (4th Shift)]

(a) PSR
(b) TUX
(c) MPO
(d) YBA

Correct Answer: (b) TUX

Solution:The pattern followed here is :

Hence, TUX is the correct answer.

50. 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 10/08/2023 (1st Shift)]

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

(a) 19 - 37 - 73
(b) 14 - 29 - 59
(c) 23 - 47 - 95
(d) 3 - 7 - 15

Correct Answer: (a) 19 - 37 - 73

Solution:The pattern followed here is :

{(1^st number × 2) + 1} = 2^nd number and {(2^nd number × 2) + 1} = 3^rd number
(14 - 29 - 59) → {(14 × 2) + 1} ⇒ (28 + 1) = 29 and {(29 × 2) + 1} ⇒ (58 + 1) = 59
(23 - 47 - 95) → {(23 × 2) + 1} ⇒ (46 + 1) = 47 and {(47 × 2) + 1} ⇒ (94 + 1) = 95
(3 - 7 - 15) → {(3 × 2) + 1} ⇒ (6 + 1) = 7 and {(7 × 2) + 1} ⇒ (14 + 1) = 15
But,

(19 - 37 - 73) → {(19 × 2) + 1} ⇒ (38 + 1) = 39 (Not 37) and {(39 × 2) + 1} ⇒ (78 + 1) = 79 (Not 73)

Hence, (19 - 37 - 73) is the correct answer.

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

41. 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 09/08/2023 (1st Shift)]

42. 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 09/08/2023 (1st Shift)]

43. Three of the following four are alike in a certain way and thus form a group. Which is one that does NOT belong to that group? [S.S.C CHSL 09/08/2023 (2nd Shift)]

44. The second number in the given number pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) are followed in all the number pairs except one. Find the odd number pair. [S.S.C CHSL 09/08/2023 (2nd Shift)]

45. 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 09/08/2023 (2nd Shift)]

46. Three of the following four letter clusters 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 09/08/2023 (3rd Shift)]

47. 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 09/08/2023 (3rd Shift)]

48. 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 09/08/2023 (3rd Shift)]

49. 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 09/08/2023 (4th Shift)]

50. 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 10/08/2023 (1st Shift)]

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