Which number will replace the question mark (?) in the following serie – InterviewSolution

InterviewSolution

1.

Which number will replace the question mark (?) in the following series?7, 24, 75, 228, ?1. 6602. 6563. 6894. 687

Answer» Correct Answer - Option 4 : 687

The pattern followed here is:

7× 3 + 3 = 24,

24 × 3 + 3 = 75,

75 × 3 + 3 = 228,

228 × 3 + 3 = 687,

Hence, 687 is the correct answer.

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