BANK & INSURANCE (WRONG NUMBER SERIES PART 3)

12 + 4 = 16
16 + 12 = 28
28 + 20 = 48
48 + 28 = 76 ❌ (given 78)
76 + 36 = 112

Differences:
4, 12, 20, 28, 36 (increase by +8 each time)

Correct series should be: 12, 16, 28, 48, 76, 112

Given 78 is wrong

148 − 1×2 = 146
146 − 2×3 = 140
140 − 3×4 = 128
128 − 4×5 = 108
108 − 5×6 = 78 ❌ (given 68)

Correct series should be: 148, 146, 140, 128, 108, 78

Given 68 is wrong.

Differences should be:

12
12 + 4 = 16
16 + 8 = 24
24 + 12 = 36
36 + 16 = 52

Now apply correctly:

129 + 12 = 141
141 + 16 = 157
157 + 24 = 181
181 + 36 = 217
217 + 52 = 269 ❌ (given 275)

Correct series should be:

129, 141, 157, 181, 217, 269

Given 275 is wrong.

60 × 2 = 120
120 × 0.75 = 90
90 × 2 = 180
180 × 0.75 = 135 ❌ (given 145)
135 × 2 = 270

Correct series should be: 60, 120, 90, 180, 135, 270

Given 145 is wrong.

32 + 29 = 61
61 + 31 = 92
92 + 37 = 129
129 + 41 = 170
170 + 43 = 213 ❌ (given 211)

Differences follow consecutive prime numbers after 29:

29, 31, 37, 41, 43

Correct series should be: 32, 61, 92, 129, 170, 213

Given 211 is wrong.

135 + 4 = 139
139 − 9 = 130
130 + 16 = 146
146 − 25 = 121 ❌ (given 111)
121 + 36 = 157

Pattern:
+2², −3², +4², −5², +6²

Correct series should be: 135, 139, 130, 146, 121, 157

Given 111 is wrong.

13 × 2 + 5 = 31
31 × 2 + 5 = 67
67 × 2 + 5 = 139
139 × 2 + 5 = 283 ❌ (given 285)
283 × 2 + 5 = 571

Correct series should be: 13, 31, 67, 139, 283, 571

Given 285 is wrong.

3 = 2² − 1 = 4 − 1 = 3
143 = 12² − 1 = 144 − 1 = 143
483 = 22² − 1 = 484 − 1 = 483
1023 = 32² − 1 = 1024 − 1 = 1023
1763 = 42² − 1 = 1764 − 1 = 1763
52² − 1 = 2704 − 1 = 2703 ❌

Given last term is 2713, but correct value should be 2703.

Correct series:

3, 143, 483, 1023, 1763, 2703

2713 is wrong.

100 + 24 = 124
124 − 12 = 112
112 + 24 = 136
136 − 12 = 124
124 + 24 = 148

Pattern: +24, −12, +24, −12, +24

Series follows correctly.