Question
Download Solution PDFഒരു ഘനത്തിന്റെ അരിക് 2 സെന്റിമീറ്റർ വർദ്ധിപ്പിച്ചാൽ, വ്യാപ്തം 488 സെന്റിമീറ്റർ3 വർദ്ധിക്കും. അപ്പോൾ ഘനത്തിന്റെ ഓരോ അരികുകളുടെയും നീളം എന്തായിരിക്കും?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFഘനത്തിന്റെ നീളം x cm ആണ്.
⇒ 2 സെന്റിമീറ്ററിന് ശേഷമുള്ള നീളം = x + 2 മീ
⇒ പ്രാരംഭ വ്യാപ്തം = x3
⇒ വശം വർധിച്ചതിന് ശേഷമുള്ള വ്യാപ്തം = (x + 2)3
⇒ (x + 2)3 – x3 = 488
⇒ x3 + 6x2 + 12x + 8 – x3 = 488
⇒ 6x2 + 12x – 480 = 0
⇒ x2 + 2x – 80 = 0
⇒ (x – 8) (x + 10) = 0
⇒ x = 8, -10
⇒ x = 8 cm
Last updated on Jul 21, 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
-> UGC NET June 2025 Result Out at ugcnet.nta.ac.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