Question
Download Solution PDFThe circumference of the two circles is 198 cm and 352 cm respectively. What is the difference between their radii?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
The circumference of the two circles is 198 cm and 352 cm respectively.
Concept used:
Circumference of the two circles = 2πr
Where, r = radius
Calculation:
Let the radius of two circle is r1 & r2
According to the question,
2πr2 - 2πr1 = 352 - 198
⇒ 2π(r2 - r1) = 154
⇒ π(r2 - r1) = 77
⇒ r2 - r1 = 77 × 7/22
⇒ r2 - r1 = 49/2
⇒ r2 - r1 = 24.5
∴ The required answer is 24.5 cm
Last updated on Jun 11, 2025
-> The SSC CGL Notification 2025 has been released on 9th June 2025 on the official website at ssc.gov.in.
-> The UPSC Prelims Result 2025 and UPSC IFS Result 2025 has been released @upsc.gov.in
-> The SSC CGL exam registration process is now open and will continue till 4th July 2025, so candidates must fill out the SSC CGL Application Form 2025 before the deadline.
-> This year, the Staff Selection Commission (SSC) has announced approximately 14,582 vacancies for various Group B and C posts across government departments.
-> The SSC CGL Tier 1 exam is scheduled to take place from 13th to 30th August 2025.
-> Aspirants should visit ssc.gov.in 2025 regularly for updates and ensure timely submission of the CGL exam form.
-> Candidates can refer to the CGL syllabus for a better understanding of the exam structure and pattern.
-> The CGL Eligibility is a bachelor’s degree in any discipline.
-> Candidates selected through the SSC CGL exam will receive an attractive salary. Learn more about the SSC CGL Salary Structure.
-> Attempt SSC CGL Free English Mock Test and SSC CGL Current Affairs Mock Test.
-> Candidates should also use the SSC CGL previous year papers for a good revision.