Question : Directions: In the following question a series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
6, 10, 18, 34, ___
Option 1: 46
Option 2: 56
Option 3: 66
Option 4: 76
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Correct Answer: 66
Solution :
Given:
6, 10, 18, 34, ___
In the given series, add twice the difference of the previous number to get the next number –
6 + 4 = 10;
10 + (4 × 2) = 10 + 8 = 18;
18 + (8 × 2) = 18 + 16 = 34;
34 + (16 × 2) = 34 + 32 = 66
So, the missing number is 66. Hence, the third option is correct.
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