Few of the letters are given followed by a question mark (?) these letters are following a specific pattern you have to give the correct option which can replace question mark. Complete the sequence: T, Q, N, K, ?
H
We are given a letter series T, Q, N, K, ? and must find the letter that continues the same pattern.
Write the position numbers of the letters in the English alphabet: T = 20, Q = 17, N = 14, K = 11.
Now find the gap between consecutive terms: 20 → 17 is −3, 17 → 14 is −3, and 14 → 11 is −3.
So each letter is obtained by moving 3 steps back in the alphabet (a constant difference of −3).
Apply the same rule to the last known term: 11 − 3 = 8.
The 8th letter of the alphabet is H.
Quick check of the full chain: T, Q, N, K, H each drop by 3, confirming the pattern.
Hence the missing letter is H.
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Important Questions from Alphabet Series
A series is given with some letters missing. Choose the correct alternative from the given ones that will complete the series:
BR __ __ NB __ O __ NBA series is given with some letters missing. Choose the set of letters which when sequentially placed shall complete it .
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fill in the six blanks ( _ ) using one of the following given four choices such that the series follows a specific order.
In the series AABABCABCDABCDE..., which letter appears at the 100th place?
