Question : Directions: From the given options, choose the correct one that will replace the question mark (?) in the following series. 2, 8, 4, 16, 16, 32, ?, 64
Option 1: 64
Option 2: 256
Option 3: 126
Option 4: 184
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Correct Answer: 256
Solution : Given: 2, 8, 4, 16, 16, 32, ?, 64
This series contains two subseries, starting from 2 in each alternative term next term is the square of the previous number, and in the second subseries next term is twice the previous number –
So, the required missing number in the series is 256. Hence, the second option is correct.
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