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Question

Select the term that will come next in the following series. 

31J, 29F, 31M, 30A, 31M, 30J, ?

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
31J

Series Completion: Finding the Next Term

The task is to find the next term in the sequence: 31J, 29F, 31M, 30A, 31M, 30J, ? We need to identify the pattern governing both the numbers and the letters.

Number Pattern Analysis

Observe the sequence of numbers: 31, 29, 31, 30, 31, 30. These numbers represent the typical number of days in consecutive months.

Letter Pattern Analysis

Observe the sequence of letters: J, F, M, A, M, J. These letters correspond to the first letter of the months of the year:

  • J represents January (which has 31 days)
  • F represents February (which has 28 or 29 days; 29 is used here)
  • M represents March (which has 31 days)
  • A represents April (which has 30 days)
  • M represents May (which has 31 days)
  • J represents June (which has 30 days)

Determining the Next Term

The pattern follows the months sequentially starting from January.

  • The last given term corresponds to June (J, 30 days).
  • The next month in the calendar is July.
  • July has 31 days.
  • The first letter of July is J.
  • Combining the number of days (31) and the initial letter (J) gives the next term.

Therefore, the next term in the series is 31J.

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