Question Discussion & Solution

The series follows the following pattern:

8

8 × 2 + 1 = 17

17 × 2 + 1 = 35

35 × 2 + 1 = 71

71 × 2 + 1 = 143

143 × 2 + 1 = 287

∴ The missing term in the series is 143.

9 × 5 + 1 = 46

10 × 6 + 1 = 61

11 × 7 + 1 = 78

12 × 8 + 1 = 97

13 × 9 + 1 = 118

The series follows the following pattern:

5.5 × 2 - 2 = 9

9 × 2 - 2 = 16

16 × 2 - 2 = 30

30 × 2 - 2 = 58

58 × 2 - 2 = 114

The series follows the following pattern:

32 × 0.5 = 16

16 × 1.5 = 24

24 × 2.5 = 60

60 × 3.5 = 210

210 × 4.5 = 945

∴ The missing term in the series is 32.

The series follows the following pattern:

12 + 11 = 23

23 + 22 = 45

45 + 33 = 78

78 + 44 = 122

122 + 55 = 177