Missing Number (SSC CHSL 2021 Tier -1)

11. Find the missing number? [SSC CHSL 01/06/2022 (Morning)]

(a) 160
(b) 175
(c) 140
(d) 165

Correct Answer: (d) 165

Solution:In first row: (12, 12, 3, 12 × 5) = (12, 36, 60)
In second row: (24, 24 × 3, 24 × 5) = (24, 72, 120)
Similarly, in third row: (33, 33 × 3, 33 × 5) = (33, 99, 165)

12. Find the missing number? [SSC CHSL 01/06/2022 (Morning)]

(a) 76
(b) 94
(c) 96
(d) 84

Correct Answer: (d) 84

Solution:Logic: (a - 1) × (b - 1) = c
In 1st row: (9 - 1) × (7 - 1) = 8 × 6 = 48
In 2nd row: (12 - 1) × (5 - 1) = 11 × 4 = 44
In 3rd row: (8 - 1) × (13 - 1) = 7 × 12 = 84

13. Find the missing number? [SSC CHSL 01/06/2022 (Morning)]

(a) 34
(b) 38
(c) 32
(d) 37

Correct Answer: (a) 34

Solution: Logic: (

= c
In first row: (

= 168/3 = 56
In second row: (

= 47
In third row: (

= 34

14. Find the missing number? [SSC CHSL 01/06/2022 (Afternoon)]

(a) 48
(b) 46
(c) 50
(d) 44

Correct Answer: (a) 48

Solution: Logic: √

In first row: √

= 4 × 12 = 32
In second row: √

= 3 × 8 = 24
In third row: √

4

= 2 × 24 = 48

15. Find the missing number? [SSC CHSL 01/06/2022 (Evening)]

(a) 148
(b) 146
(c) 141
(d) 144

Correct Answer: (c) 141

Solution:For first row: 86 + 72 = 158
For second row: 98 + 111 = 209
For third row: 76 + 65 = 141

16. Find the missing number? [SSC CHSL 02/06/2022 (Afternoon)]

(a) 60
(b) 40
(c) 50
(d) 70

Correct Answer: (a) 60

Solution:In first row: (5 + 8) × 3 = 13 × 3 = 39
In second row: (7 + 5) × 3 = 12 × 3 = 36
In third row: (11 + 9) × 3 = 20 × 3 = 60

17. Find the missing number? [SSC CHSL 03/06/2022 (Evening)]

(a) 91
(b) 111
(c) 101
(d) 99

Correct Answer: (b) 111

Solution:Logic: (a × 4) + 3 = b and (b × 3) + 6 = c
In first row: (12 × 4) + 3 = 51 and (51 × 3) + 6 = 159
In second row: (9 × 4) + 3 = 39 and (39 × 3) + 6 = 123
Similarly, in last row: (8 × 4) + 3 = 35 and (35 × 3) + 6 = 111

18. Find the missing number? [SSC CHSL 03/06/2022 (Evening)]

(a) 103
(b) 113
(c) 109
(d) 104

Correct Answer: (d) 104

Solution:Logic: (a × b) + a = c
In first row: (17 × 8) + 17 = 136 + 17 = 153
In second row: (19 × 6) + 19 = 114 + 19 = 133
Similarly, in third row: (13 × 7) + 13 = 91 + 13 = 104

19. Find the missing number? [SSC CHSL 06/06/2022 (Afternoon)]

(a) 144
(b) 142
(c) 122
(d) 124

Correct Answer: (a) 144

Solution:In first row: (15 × 4) + 2 = 60 + 2 = 62
(62 × 2) - 4 = 124 - 4 = 120
In second row: (18 × 4) + 2 = 72 + 2 = 74, (74 × 2) - 4 = 148 - 4 = 144
In third row: (21 × 4) + 2 = 84 + 2 = 86, (86 × 2) - 4 = 172 - 4 = 168

20. Find the missing number? [SSC CHSL 06/06/2022 (Afternoon)]

(a) 21
(b) 19
(c) 17
(d) 23

Correct Answer: (b) 19

Solution:Logic:
In first row: 32 + 40 = 72, 72 ÷ 4 = 18
In second row: 38 + 46 = 84, 84 ÷ 4 = 21
In third row: 33 + 43 = 76, 76 ÷ 4 = 19