Correct Answer - Option 3 : 138
Considering the above series,
28, 34, 46, 66, 96, ?
The logic of the series can be explained as,
34 – 28 = 6 = 2 × 3
46 – 34 = 12 = 3 × 4
66 – 46 = 20 = 4 × 5
96 – 66 = 30 = 5 × 6
By observing the pattern,
? – 96 = 6 × 7 = 42
⇒ ? = 42 + 96
⇒ ? = 138
∴ The value of ? is 138