Question
Download Solution PDFजर x + y = 12, y + z = 15 आणि x + z = 18, तर x + y + z = ? शोधा.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिलेले आहे:
x + y = 12, y + z = 15, x + z = 18
गणना:
x + y = 12 ----(1)
y + z = 15 ----(2)
x + z = 18 ----(3)
(1) आणि (2) समीकरणे सोडवून
⇒ x – z = -3 ----(4)
(3) आणि (4) समीकरणे सोडवून
⇒ x = 7.5
x चे मूल्य समीकरण (1) मध्ये ठेवून
⇒ y = 4.5
y चे मूल्य समीकरण (2) मध्ये ठेवून
⇒ z = 10.5
x + y + z
⇒ 7.5 + 4.5 + 10.5
⇒ 22.5
∴ x + y + z चे मूल्य 22.5 आहे.
Shortcut Trick
(1), (2) आणि (3) यांची बेरीज करा
⇒ 2(x + y + z) = 45
⇒ (x + y + z) = 45/2 = 22.5
∴ x + y + z चे मूल्य 22.5 आहे.
Last updated on Jun 30, 2025
-> The RRB NTPC CBT 1 Answer Key PDF Download Link Active on 1st July 2025 at 06:00 PM.
-> RRB NTPC Under Graduate Exam Date 2025 will be out soon on the official website of the Railway Recruitment Board.
-> RRB NTPC Exam Analysis 2025 is LIVE now. All the candidates appearing for the RRB NTPC Exam 2025 can check the complete exam analysis to strategize their preparation accordingly.
-> The RRB NTPC Admit Card will be released on its official website for RRB NTPC Under Graduate Exam 2025.
-> Candidates who will appear for the RRB NTPC Exam can check their RRB NTPC Time Table 2025 from here.
-> The RRB NTPC 2025 Notification released for a total of 11558 vacancies. A total of 3445 Vacancies have been announced for Undergraduate posts like Commercial Cum Ticket Clerk, Accounts Clerk Cum Typist, Junior Clerk cum Typist & Trains Clerk.
-> A total of 8114 vacancies are announced for Graduate-level posts in the Non-Technical Popular Categories (NTPC) such as Junior Clerk cum Typist, Accounts Clerk cum Typist, Station Master, etc.
-> Prepare for the exam using RRB NTPC Previous Year Papers.
-> Get detailed subject-wise UGC NET Exam Analysis 2025 and UGC NET Question Paper 2025 for shift 1 (25 June) here