Q1. 5, 12, ?, 41, 87, 214

A. 19 B. 35 C. 22 D. 26

Answer: C
Explanation: 5 + 7 = 12
12 + (7 + 3 = 10) = 22
22 + (10 + 9 = 19) = 41
41 + (19 + 27 = 46) = 87
87 + (46 + 81 = 127) = 214
Q2. 14, ?, 13, 17.5, 21.75

A. 10 B. 12 C. 12.5 D. 13.25

Answer: B
Explanation: [latex] \frac {14}{2} + 5 [/latex] = 12
[latex] \frac {12}{2} + 7 [/latex] = 13
[latex] \frac {13}{2} + 11 [/latex] = 17.5
[latex] \frac {17.5}{2} + 13 [/latex] = 21.75
Q3. 15, 5, 4.5, 5.8.7.9, ?

A. 9.6 B. 11.42 C. 12.23 D. 10.74

Answer: D
Explanation: [latex] 15 \times 0.2 + 2 [/latex] = 5
[latex] 5 \times 0.3 + 3 [/latex] = 4.5
[latex] 4.5 \times 0.4 + 4 [/latex] = 5.8
[latex] 5.8 \times 0.5 + 5 [/latex] = 7.9
[latex] 7.9 \times 0.6 + 6 [/latex] = 10.74
Q4. 107, 106, 52, 16.3 , ?

A. 3.075 B. 2.625 C. 1.916 D. 0.416

Answer: A
Explanation: [latex] 107 - \frac {1}{1} [/latex] = 106
[latex] 106 - \frac {2}{2} [/latex] = 52
[latex] 52 - \frac {3}{3} [/latex] = 16.3
[latex] 16.3 - \frac {4}{4} [/latex] = 3.075
Q5. 29, ?, 79, 131, 201

A. 61 B. 76 C. 37 D. 45

Answer: D
Explanation:
[latex] 29 + (18 \times 1 - 2) [/latex] = 29 + 16 = 45
[latex] 45 + (18 \times 2 - 2) [/latex] = 45 + 34 = 79
[latex] 79 + (18 \times 3 - 2) [/latex] = 79 + 52 = 131
[latex] 131 + (18 \times 4 - 2) [/latex] = 131 + 70 = 201

Q1. ?, 6, 10.5, 23, 60

A. 7 B. 5 C. 4 D. 6

Answer: B
Explanation: [latex] 9 \times 0.5 + 0.5 [/latex] = 5
[latex] 5 \times 1 + 1 [/latex] = 6
[latex] 6 \times 1.5 + 1.5 [/latex] = 10.5
[latex] 10.5 \times 2 + 2 [/latex] = 23
[latex] 23 \times 2.5 + 2.5 [/latex] = 60
Q2. 211, 90, 171, 122, 147, 138, ?

A. 152 B. 176 C. 139 D. 180

Answer: C
Explanation: [latex] 211 - {11}^{2} [/latex] = 90
[latex] 90 + {9}^{2} [/latex] = 171
[latex] 171 - {7}^{2} [/latex] = 122
[latex] 122 + {5}^{2} [/latex] = 147
[latex] 147 - {3}^{2} [/latex] = 138
[latex] 138 + {1}^{2} [/latex] = 139
Q3. 1256, 318, ?, 163, 328, 86

A. 338 B. 836 C. 368 D. 638

Answer: D
Explanation: [latex] \frac {1256}{4} [/latex] = 314 + 4 = 318
[latex] 318 \times 2 [/latex] = 636 + 2 = 638
[latex] \frac {638}{4} [/latex] = 159 + 4 = 163
[latex] 163 \times 2 [/latex] = 326 + 2 = 328
[latex] \frac {328}{4} [/latex] = 82 + 4 = 86
Q4. 37, 54, 88, ?, 207

A. 139 B. 213 C. 193 D. 391

Answer: A
Explanation: 37 + 17 = 54
[latex] 54 + 2 \times 17 [/latex] = 88
[latex] 88 + 3 \times 17 [/latex] = 139
[latex] 139 + 4 \times 17 [/latex] = 207
Q5. 13, 29, 48, 70, 95, ?

A. 132 B. 121 C. 113 D. 123

Answer: D
Explanation: 13 + (9 + 7) = 29
29 + (9 + 10) = 48
48 + (9 + 13) =70
70 + (9 + 16) = 95
95 + (9 + 19) = 123

Q1. 2, 3, 6, 14, ?, 115.5

A. 52.5 B. 47.5 C. 67.5 D. 37.5

Answer: D
Explanation: [latex] 2 \times 1 + 1 [/latex] = 3
[latex] 3 \times 1.5 + 1.5 [/latex] = 6
[latex] 6 \times 2 + 2 [/latex] = 14
[latex] 14 \times 2.5 + 2.5 [/latex] = 37.5
[latex] 37.5 \times 3 + 3 [/latex] = 115.5
Q2. 12 13 28 85 ? 1711

A. 354 B. 342 C. 294 D. 234

Answer: B
Explanation: [latex] 12 \times 1 – 1 + 2 [/latex] = 13
[latex] 13 \times 2 – 2 + 4 [/latex] = 28
[latex] 28 \times 3 – 1 + 2 [/latex] = 85
[latex] 85 \times 4 – 2 + 4 [/latex] = 342
[latex] 342 \times 5 – 1 + 2 [/latex] = 1711
Q3. 3, 5, 10, ?, 92, 349

A. 38 B. 27 C. 56 D. 44

Answer: B
Explanation: 3 + 1² + 1 = 5
5 + 2² + 1 = 10
10 + 4² + 1 = 27
Q4. 5, 8, 15, 37, ?, 309.5

A. 99.5 B. 97.5 C. 94.5 D. 98.5

Answer: A
Explanation: [latex] 5 \times 1 + 2 + 1 [/latex] = 8
[latex] 8 \times 1.5 + 4 – 1 [/latex] = 15
[latex] 15 \times 2 + 6 + 1 [/latex] = 37
[latex] 37 \times 2.5 + 8 – 1 [/latex] = 99.5
[latex] 99.5 \times 3 + 10 + 1 [/latex] = 309.5
Q5. 3, ?, 13, 39, 87, 169

A. 9 B. 5 C. 6 D. 7

Answer: B
Explanation: 3 + 1² + 1= 5
5 + 3² – 1= 13
13 + 5² + 1= 39....