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Instructions
In each of the following questions, a series is given,with one term missing. Choose the correct alternative from the given ones that will complete the series.
Solution
Given sequence is 7, 12, 22, 42, 82
Let the missing term be y
12 - 7 = 5
22 - 12 = 10
42 - 22 = 20
82 - 42 = 40
As we can see that every time the difference is getting doubled so,
y - 82 = 80
y = 162
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