जर 6x - 5y + 11 = 0 आणि 15x + ky - 9 = 0 ह्या समीकरणांचे कोणतेही उकल नसतील तर k चे मूल्य शोधा.

This question was previously asked in
RRB ALP Previous Paper 17 (Held On: 21 Aug 2018 Shift 3)
View all RRB ALP Papers >
  1. -12.5
  2. 12.5
  3. -18
  4. 18

Answer (Detailed Solution Below)

Option 1 : -12.5
Free
General Science for All Railway Exams Mock Test
2.2 Lakh Users
20 Questions 20 Marks 15 Mins

Detailed Solution

Download Solution PDF

वापरलेली संकल्पना:

x आणि y या दोन चलांमधील रेखीय समीकरणांच्या जोडीचा विचार करा.

a1x + b1y + c1 = 0

a2x + b2y + c2 = 0

येथे  a1, b1, c1, a2, b2, cया सर्व वास्तविक संख्या आहेत.

लक्षात ठेवा, a12 + b12 ≠ 0, a22 + b22 ≠ 0

जर (a1/a2) = (b1/b2) ≠ (c1/c2), तर कोणतेही समाधान होणार नाही.

गणना:

जेव्हा दोन समीकरणांना कोणतेही समाधान नसते तेव्हा समांतर समीकरण प्रणाली वापरून,

मग,

 6/15 = -5/k

⇒ k = -25/2

⇒ k = -12.5
Latest RRB ALP Updates

Last updated on Jul 22, 2025

-> The Railway Recruitment Board has scheduled the RRB ALP Computer-based exam for 15th July 2025. Candidates can check out the Exam schedule PDF in the article.

-> RRB has also postponed the examination of the RRB ALP CBAT Exam of Ranchi (Venue Code 33998 – iCube Digital Zone, Ranchi) due to some technical issues.

-> SSC Selection Post Phase 13 Admit Card 2025 has been released @ssc.gov.in

-> TS TET Result 2025 has been released @tgtet.aptonline.in.

-> TNPSC Group 4 Answer Key 2025 has been released at tnpsc.gov.in

-> There are total number of 45449 Applications received for RRB Ranchi against CEN No. 01/2024 (ALP).


-> The Railway Recruitment Board (RRB) has released the official RRB ALP Notification 2025 to fill 9,970 Assistant Loco Pilot posts.

-> The official RRB ALP Recruitment 2025 provides an overview of the vacancy, exam date, selection process, eligibility criteria and many more.

->The candidates must have passed 10th with ITI or Diploma to be eligible for this post. 

->The RRB Assistant Loco Pilot selection process comprises CBT I, CBT II, Computer Based Aptitude Test (CBAT), Document Verification, and Medical Examination.

-> This year, lakhs of aspiring candidates will take part in the recruitment process for this opportunity in Indian Railways. 

-> Serious aspirants should prepare for the exam with RRB ALP Previous Year Papers.

-> Attempt RRB ALP GK & Reasoning Free Mock Tests and RRB ALP Current Affairs Free Mock Tests here

-> Bihar Police Driver Vacancy 2025 has been released @csbc.bihar.gov.in.

->UGC NET Final Asnwer Key 2025 June has been released by NTA on its official site

More Linear Equation in 2 or more Variables Questions

Get Free Access Now
Hot Links: teen patti gold new version 2024 teen patti master 2024 rummy teen patti teen patti real cash withdrawal teen patti master old version