Missing Number (SSC CPO 2023 Tier -1)

Total Questions: 13

1. Find the missing number? [S.S.C CPO 03/10/2023 (1st Shift)]

Correct Answer: (a) 114
Solution:The pattern followed here is :

{(3rd number - 1st number) ÷  3} = 2nd number

(19, 6, 37) → {(37 - 19) ÷ 3} ⇒ (18 ÷ 3) = 6

(21, 8, 45) → {(45 - 21) ÷ 3} ⇒ (24 ÷ 3) = 8

Similarly,

(72, 14, ?) → {(114 - 72) ÷ 3} ⇒ (42 ÷ 3) = 14

Hence, "14" is the correct answer.

2. Find the missing number? [S.S.C CGL 14/07/2023 (3rd shift)]

Correct Answer: (d) 83
Solution:The pattern followed here is :

{(1st number × 3) + 4} = 2nd number & (2nd number × 2) - 3} = 3rd number

(8, 28, 53) → {(8 × 3) + 4} = 28 & {(28 × 2) - 3} = 53

(7, 25, 47) → {(7 × 3) + 4} = 25 & {(25 × 2) - 3} = 47

Similarly,

(13, 43, ?) → {(13 × 3) + 4} = 43 & {(43 × 2) - 3} = 83

Hence, "83" is the correct answer.

3. Find the missing number? [S.S.C CGL 17/07/2023 (1st shift)]

Correct Answer: (d) 6
Solution:The pattern followed here is :

{(2nd number + 3rd number) - 4} = 1st number

(6, 4, 6) → {(4 + 6) - 4} ⇒ 10 - 4 = 6

(18, 9, 13) → {(9 + 13) - 4} ⇒ 22 - 4 = 18

Similarly,

(8, 6, ?) → {(6 + x) - 4} ⇒ 6 + x - 4 = 8 ⇒ x = 8 - 2 ⇒ x = 6

Hence, "6" is the correct answer.

4. Find the missing number? [S.S.C CGL 17/07/2023 (2nd shift)]

Correct Answer: (a) 25
Solution:The pattern followed here is :

[{(1st number × 2nd number) × 3} - 2] = 3rd number

(6, 2, 34) → [{(6 × 2) × 3} - 2] = 34

(1, 5, 13) → [{(1 × 5) × 3} - 2] = 13

Similarly,

(9, 1, ?) → [{(9 × 1) × 3} - 2] = 25

Hence, "25" is the correct answer.

5. Find the missing number? [S.S.C CGL 17/07/2023 (4th shift)]

Correct Answer: (b) 14
Solution:The pattern followed here is :

[{(3rd number - 2nd number) ÷ 2] = 1st number

(2, 1, 5) → {(5 - 1) ÷ 2} ⇒ 4 ÷ 2 = 2

(5, 12, 22) → {(22 - 12) ÷ 2} ⇒ 10 ÷ 2 = 5

Similarly,

(6, 2, ?) → (x - 2) ÷ 2 = 6 ⇒ x = (6 × 2) + 2 = 14

Hence, "14" is the correct answer.

6. Find the missing number? [SSC CGL 18/07/2023 (2nd shift)]

Correct Answer: (c) 19
Solution:Logic:
(First number x 3) + (Third number) = Second number
(5, 19, 4) → (5 x 3) + 4 = 19, 15 + 4 = 19
(1, 7, 4) → (1 x 3) + 4 = 7, 3 + 4 = 7
Similarly...
(6, ?, 1) → (6 x 3) + (1) = ? , 18 + 1 = 19

7. Find the missing number? [SSC CGL 19/07/2023 (3rd shift)]

Correct Answer: (a) 2
Solution:Logic:
(First number - number) ÷  3 = Second number
(16, 4, 4) → (16 - 4) ÷  3  = (12) ÷ 3 = 4
(30, 5, 15) → (30 - 15) ÷  3 = 15 ÷ 3 = 5

(8, 2 ?) → (8 - 2) ÷  3 → (6)  ÷ 3 = 2

8. Find the missing number? [SSC CGL 20/07/2023 (1st shift)]

Correct Answer: (d) 297
Solution:Logic: (First number)² + (second number)³ = Third number
(15, 3, 252) → (15)² + (3)³ = 225 + 27 = 252
(11, 5, 246) → (11)² + (5)³ = 121 + 125 = 246

Similarly,
(9, 6, ?) → (9)² + (6)² → 81 + 216 = 297

9. Find the missing number? [SSC CGL 20/07/2023 (3rd shift)]

Correct Answer: (b) 27
Solution:Logic: (First Number + Second number) × 3 = Third number
(4, 2, 18) → (4 + 2) × 3 = 6 × 3 = 18
(1, 7, 24) → (1 + 7) × 3 = 8 × 3 = 24

Similarly,
(5, 4, ?) → (5 + 4) × 3 = 9 × 3 = 27

10. Find the missing number? [SSC CGL 21/07/2023 (1st shift)]

Correct Answer: (c) 11
Solution:Logic: (First number + Second number) - 2 = Third number
(3, 5, 6) → (3 + 5) - 2 = 8 - 2 = 6
(5, 12, 15) → (5 + 12) - 2 = 17 - 2 = 15

Similarly,
(9, 4, ?) → (9 + 4) - 2 = 13 - 2 = 11