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? [SSC CHSL 09/08/2023 (1st Shift)]

1) 4 - 125
(2) 3 - 64
(3) 2 - 8
(4) 6 - 343

(a) 3
(b) 4
(c) 2
(d) 1

Correct Answer: (a) 3

Solution:Logic: (1st num + 1)³ = 2nd 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)

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? [SSC CHSL 09/08/2023 (1st Shift)]

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

Correct Answer: (d) BFI

Solution:

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? [SSC CHSL 09/08/2023 (2nd Shift)]

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

Correct Answer: (c) CGH

Solution:

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. [SSC 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. [SSC CHSL 09/08/2023 (2nd Shift)]

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

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

Correct Answer: (d) 19 : 342

Solution:Logic: - (1st number)² + (1st number) = 2nd 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)

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? [SSC CHSL 09/08/2023 (3rd Shift)]

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

Correct Answer: (b) SUV

Solution:

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. [SSC 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:Logic: (1st term + 2nd term) ÷ 2 = 3rd term
(14 + 44) ÷ 2 = 58 ÷ 2 = 29
(36 + 66) ÷ 2 = 102 ÷ 2 = 51
(21 + 51) ÷ 2 = 72 ÷ 2 = 36
But, (29 + 44) ÷ 2 = 73 ÷ 2 = 14

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. [SSC CHSL 09/08/2023 (3rd Shift)]

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

61 : 133, 40 : 69, 52 : 93, 38 : 65

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

Correct Answer: (d) 61 : 133

Solution:Logic: (1st no. × 2) - 11 = 2nd no.
(40 × 2) - 11 = 80 - 11 = 69
(52 × 2) - 11 = 104 - 11 = 93
(38 × 2) - 11 = 76 - 11 = 65

But,
(61 × 2) - 11 = 122 - 11 = 111 (not 133)

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? [SSC CHSL 09/08/2023 (4th Shift)]

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

Correct Answer: (b) TUX

Solution:

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. [SSC 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:Logic: (1st num × 2) + 1 = 2nd num and (2nd num × 2) + 1 = 3rd num
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)

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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? [SSC 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? [SSC 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? [SSC 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. [SSC 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. [SSC 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? [SSC 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. [SSC 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. [SSC 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? [SSC 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. [SSC CHSL 10/08/2023 (1st Shift)]

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