The numerical series given below follows a particular sequence. Fill in the missing elements.
16 23 37 65 121 ? 457 ?

Calculate the difference between consecutive terms:

23 - 16 = 7

37 - 23 = 14

65 - 37 = 28

121 - 65 = 56

Here the difference is getting doubled for the next pair of terms.

Thus the difference between next term and 121 should be 56*2 = 112

A - 121 = 112 --> A = 233

457 - 233 = 224

Thus the difference between next term and 457 should be 224*2 = 448

B - 457 = 448 --> B = 905

Thus option B is the correct choice.

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The numerical series given below follows a particular sequence. Fill in the missing elements.16 23 37 65 121 ? 457 ?