Question
Download Solution PDFIf the first term is 125 and the common ratio is 2/5, what will be the 4th term of the GP?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
If a, ar, ar2, ar3,.....,arn-1 are in GP then the nth term of GP is given by
Tn = arn-1
Given:
First term a = 125
Common ratio r = 2/5
Term n = 4 th
Calculation:
⇒ Tn = arn-1
⇒ T4 = 125 × (2/5)4-1
⇒ T4 = 125 × (2/5)3
⇒ T4 = 125 × (8/125)
⇒ T4 = 8
Hence, the 4th term of the G is "8".
Last updated on Jun 5, 2025
-> The UP Police Sub Inspector 2025 Notification will be released by 15th June for 4543 vacancies.
-> A total of 35 Lakh applications are expected this year for the UP Police vacancies..
-> The recruitment is also ongoing for 268 vacancies of Sub Inspector (Confidential) under the 2023-24 cycle.
-> The pay Scale for the post ranges from Pay Band 9300 - 34800.
-> Graduates between 21 to 28 years of age are eligible for this post. The selection process includes a written exam, document verification & Physical Standards Test, and computer typing test & stenography test.
-> Assam Police Constable Admit Card 2025 has been released.