Direction: Find the missing series?

12, 18, 36, 90, 270, ?

This question was previously asked in
RRB Clerk Prelims Memory Based Paper (Held On: 17 August 2024 Shift 2)
View all RRB Office Assistant Papers >
  1. 850
  2. 945
  3. 670
  4. 430
  5. 780

Answer (Detailed Solution Below)

Option 2 : 945
Free
Banking Special English For All Exam Test
10 K Users
20 Questions 20 Marks 12 Mins

Detailed Solution

Download Solution PDF

Calculation:

18 ÷ 12 = 1.5

36 ÷ 18 = 2

90 ÷ 36 = 2.5

270 ÷ 90 = 3

The factors between consecutive terms are increasing by 0.5 each time: 1.5, 2, 2.5, 3.

To find the next term, multiply 270 by 3.5 (since the next factor should be 3.5):

270 × 3.5 = 945

∴ The missing term in the series is 945.

Latest RRB Office Assistant Updates

Last updated on Jan 15, 2025

-> IBPS RRB Clerk 2025 Exam Dates have been announced on 15th January 2025.

-> According to the official notice, the Prelims Examination is scheduled to be conducted on 30th August 2025, 6th September and 7th September 2025.

->  The Mains Examination is scheduled for 9th November 2025

-> IBPS RRB Office Assistant Notification 2024 was released for 5585 vacancies of Clerks in the participating Regional Rural Banks (RRBs)

-> 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 

Get Free Access Now
Hot Links: teen patti rich teen patti flush teen patti stars