यदि पहला पद 125 है और सार्व अनुपात 2/5 है, तो गुणोत्तर श्रेढ़ी (GP) का चौथा पद क्या होगा?

This question was previously asked in
UP Police SI (दरोगा) Official PYP (Held On: 13th Nov 2021 Shift 3)
View all UP Police Sub Inspector Papers >
  1. 8
  2. 12
  3. 6
  4. 10

Answer (Detailed Solution Below)

Option 1 : 8
Free
यूपी पुलिस SI (दरोगा) सामान्य हिंदी मॉक टेस्ट
48.4 K Users
20 Questions 50 Marks 10 Mins

Detailed Solution

Download Solution PDF

अवधारणा:

यदि a, ar, ar2, ar3,....., arn-1 गुणोत्तर श्रेढ़ी में हैं, तो गुणोत्तर श्रेढ़ी का nवाँ पद निम्न द्वारा दिया जाता है। 

Tn = arn-1

दिया गया है:

प्रथम पद (a) = 125

सार्व अनुपात (r) = 2/5

पद (n) = 4वाँ 

गणना:

⇒ Tn = arn-1

⇒ T4 = 125 × (2/5)4-1

⇒ T4 = 125 × (2/5)3

⇒ T4 = 125 × (8/125)

⇒ T4 = 8

अतः गुणोत्तर श्रेढ़ी (GP) का चौथा पद '8' है।

Latest UP Police Sub Inspector Updates

Last updated on Jun 19, 2025

-> The UP Police Sub Inspector 2025 Notification will be released by the end of June 2025 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.

More Geometric Progression Questions

More Progression Questions

Get Free Access Now
Hot Links: teen patti gold download apk teen patti live teen patti master game