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Question

Select the numbers from among the given options that can replace the question marks (?) in the same sequence and make the series logically complete. 

24, 31, 22, 33, ?, 35, ?, 37

This question was previously asked in
PYST : General Awareness - SSC Stenographer 2024 (Tier-I) (10-Dec-2024) (Shift 2)
The correct answer is

20, 18

This question tests your ability to identify number patterns and sequences. Let's analyze the given series: 24, 31, 22, 33, ?, 35, ?, 37

Observe that the series alternates between two subsequences. Let's separate them:

  • Subsequence 1: 24, 22, ?, ?
  • Subsequence 2: 31, 33, 35, 37

Subsequence 2 is an arithmetic progression with a common difference of 2. Therefore, it is easy to see the pattern here.

Now, let's look at Subsequence 1. This is also an arithmetic progression, but with a common difference of -2. Following this pattern:

  • The next number in Subsequence 1 would be 22 - 2 = 20
  • The number after that would be 20 - 2 = 18

Therefore, the complete series is: 24, 31, 22, 33, 20, 35, 18, 37

Thus, the numbers that replace the question marks are 20 and 18. This corresponds to option 3.

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Similar Questions

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  2. Study the number that will replace the question mark (?) in the following series.

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  7. Select the correct option that will fill in the blank and complete the series.

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Important Questions from Number Series

  1. What will come in place of question mark (?) in the following number series?

    2, 5, 11, 23, 44, 77, ?

  2. What will come in place of question mark (?) in the following number series?

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  4. What should come in place of the question mark ‘?’ in the following number series?

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  5. A series is given with one term wrong. Select that wrong term from the given alternatives.

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