CAT Exam  >  CAT Questions  >  What should come in place of question mark in... Start Learning for Free
What should come in place of question mark in the following number series?
280, 142, 73, ?, 21.25
  • a)
    35.5
  • b)
    41.5
  • c)
    28.5
  • d)
    38.5
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
What should come in place of question mark in the following number ser...

Missing number in the series:

Given series: 280, 142, 73, ?, 21.25

Pattern in the series:
- 280 - 142 = 138
- 142 - 73 = 69
- 73 - ? = 51

Calculating the missing number:
To find the missing number, we need to subtract 51 from 73.
73 - 51 = 22

Therefore, the missing number in the series is 22.

Final series: 280, 142, 73, 22, 21.25

Answer: Option 'D' 38.5
Explore Courses for CAT exam

Top Courses for CAT

Question Description
What should come in place of question mark in the following number series?280, 142, 73, ?, 21.25a)35.5b)41.5c)28.5d)38.5Correct answer is option 'D'. Can you explain this answer? for CAT 2025 is part of CAT preparation. The Question and answers have been prepared according to the CAT exam syllabus. Information about What should come in place of question mark in the following number series?280, 142, 73, ?, 21.25a)35.5b)41.5c)28.5d)38.5Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for CAT 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What should come in place of question mark in the following number series?280, 142, 73, ?, 21.25a)35.5b)41.5c)28.5d)38.5Correct answer is option 'D'. Can you explain this answer?.
Solutions for What should come in place of question mark in the following number series?280, 142, 73, ?, 21.25a)35.5b)41.5c)28.5d)38.5Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for CAT. Download more important topics, notes, lectures and mock test series for CAT Exam by signing up for free.
Here you can find the meaning of What should come in place of question mark in the following number series?280, 142, 73, ?, 21.25a)35.5b)41.5c)28.5d)38.5Correct answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of What should come in place of question mark in the following number series?280, 142, 73, ?, 21.25a)35.5b)41.5c)28.5d)38.5Correct answer is option 'D'. Can you explain this answer?, a detailed solution for What should come in place of question mark in the following number series?280, 142, 73, ?, 21.25a)35.5b)41.5c)28.5d)38.5Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of What should come in place of question mark in the following number series?280, 142, 73, ?, 21.25a)35.5b)41.5c)28.5d)38.5Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice What should come in place of question mark in the following number series?280, 142, 73, ?, 21.25a)35.5b)41.5c)28.5d)38.5Correct answer is option 'D'. Can you explain this answer? tests, examples and also practice CAT tests.
Explore Courses for CAT exam

Top Courses for CAT

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev