Which of the following numbers will replace the question mark (?) in the given series?

26, 61, 120, 209, ?, 501 

This question was previously asked in
RRB Group D 16 Sept 2022 Shift 3 Official Paper
View all RRB Group D Papers >
  1. 298
  2. 434
  3. 334
  4. 368

Answer (Detailed Solution Below)

Option 3 : 334
Free
RRB Group D Full Test 1
2.9 Lakh Users
100 Questions 100 Marks 90 Mins

Detailed Solution

Download Solution PDF

The logic followed here is:

The difference of difference between the terms is 6.

The pattern followed in the given series is:

 F1 Railway Exam Aklakh 07-01-23 D18

Hence, the correct answer is option 3).

Latest RRB Group D Updates

Last updated on Jun 2, 2025

-> The RRB NTPC Admit Card 2025 has been released on 1st June 2025 on the official website.

-> The RRB Group D Exam Date will be soon announce on the official website. Candidates can check it through here about the exam schedule, admit card, shift timings, exam patten and many more.

-> A total of 1,08,22,423 applications have been received for the RRB Group D Exam 2025. 

-> The RRB Group D Recruitment 2025 Notification was released for 32438 vacancies of various level 1 posts like Assistant Pointsman, Track Maintainer (Grade-IV), Assistant, S&T, etc.

-> The minimum educational qualification for RRB Group D Recruitment (Level-1 posts) has been updated to have at least a 10th pass, ITI, or an equivalent qualification, or a National Apprenticeship Certificate (NAC) granted by the NCVT.

-> This is an excellent opportunity for 10th-pass candidates with ITI qualifications as they are eligible for these posts.

-> The selection of the candidates is based on the CBT, Physical Test, and Document Verification.

-> Prepare for the exam with RRB Group D Previous Year Papers.

Get Free Access Now
Hot Links: teen patti tiger teen patti master download mpl teen patti