নিচের কোনটি সহ-মৌলিক সংখ্যার জোড়া?

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RRB Group D 12 Sept 2022 Shift 2 Official Paper
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  1. 52, 24
  2. 363, 77
  3. 455, 49
  4. 81, 16

Answer (Detailed Solution Below)

Option 4 : 81, 16
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ধারণা ব্যবহার করা হয়েছে

সহ-মৌলিক - যে সংখ্যার 1 ছাড়া কোন সাধারণ গুণনীয়ক নেই।

গননা

(52,24): 2 উভয়ের একটি সাধারণ ফ্যাক্টর, তাই সহ-মৌলিক নয়।

(363,77): 11 উভয়ের মধ্যে একটি সাধারণ ফ্যাক্টর, তাই সহ-মৌলিক নয়।

(455,49): 7 উভয়ের মধ্যে একটি সাধারণ ফ্যাক্টর, তাই সহ-মৌলিক নয়।

(81,16): 1 ব্যতীত তাদের কোন সাধারণ গুণনীয়ক নেই, তাই সহ-মৌলিক

উত্তর হল (81,16)

Latest RRB Group D Updates

Last updated on Jun 30, 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.

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