Question
Download Solution PDFएक बेलन का आयतन 9240 घन मीटर है। बेलन की त्रिज्या [r + 4] मीटर और ऊँचाई 15 मीटर है। यदि घन की भुजा 2r - 4 मीटर और गोले की त्रिज्या r + 11 मीटर है, तो घन और गोले के आयतन का योग ज्ञात कीजिए।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFगणना
बेलन का आयतन = 9240 घन मीटर
बेलन की त्रिज्या = r+4
बेलन की ऊँचाई = 15 मीटर
बेलन का आयतन = πr2h
अतः, π(r + 4)2 × 15 = 9240
अतः, ⇒ r + 4 = √196 = 14
⇒ r = 14 - 4 =10
घन की भुजा = 2r - 4 = 2 × 10 - 4 = 16
आयतन = s3 =163 = 4096 घन मीटर
त्रिज्या = r + 11 = 10 + 11 = 21 मीटर
आयतन = [4/3] π r3 = [4/3] × [22/7] × 213 = 38808 घन मीटर
कुल आयतन (घन + गोला) = 4096 + 38808 = 42904 घन मीटर
Last updated on Jun 30, 2025
-> The Institute of Banking Personnel Selection (IBPS) has officially released the Provisional Allotment under the Reserve List on 30th June 2025.
-> According to the official notice, the Prelims Examination is scheduled to be conducted on 6th, 7th, 13th and 14th December 2025.
-> The Mains Examination is scheduled for 1st February 2026.
-> IBPS RRB Clerk 2025 Notification is expected to be released soon.
-> Candidates with a Graduation degree in any discipline are eligible for the recruitment process.
-> The selection process includes Prelims and Mains examinations.
-> Prepare for the Exam with IBPS RRB Clerk Previous Year Papers. Check IBPS RRB Clerk Exam Analysis.
-> Attempt Free Banking Current Affairs Mock Test here