Aptitude Reasoning English GK Computer Knowledge Programming Skill Banking Software Testing

Question

What should come in place of the question mark (?) in the following number series?

             9     62     ?     1854     7415     22244

  • 433
  • 309
  • 406
  • 371
  • None of these
Answer- D

The series is ×7-1, ×6-1, ×5-1, ×4-1, ×3-1

Hence (62×6) -1 = 371


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