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78, 65, 82, 69, 86, ?

This question was previously asked in
RRB Staff Nurse Previous Year Paper [Held on 20 July 2019 (Shift I)]
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  1. 73
  2. 59
  3. 83
  4. 79

Answer (Detailed Solution Below)

Option 1 : 73
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Detailed Solution

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The correct answer is 73.

Key Points

  • We observe that there is the formation of two series:
  • One is 78,82,86 and another is 65,69,?
  • In first pattern is:
    • 78 + 4 = 82
    • 82 + 4 = 86
  • Also in second series this pattern follows
    • 65 + 4 = 69
    • 69 + 4 = 73
  • So, the no in place of ? is 73.
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Latest RRB Staff Nurse Updates

Last updated on May 15, 2025

-> The RRB Staff Nurse Response Sheet objection link has been reopened up to 20th May 2025.

-> The RRB Nursing Superintendent Exam was held from 28th to 30th April 2025.

-> RRB Staff Nurse Recruitment is ongoing for 713 vacancies.

-> Candidates will have to go through a 2-stage selection process, i.e Computer Based Written Test and Document Verification.

-> The aspirants can check the RRB Staff Nurse Eligibility Criteria form here in detail.

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