A, A, B, D, ?
Alphabet Series Pattern Explained
This question requires identifying the pattern in the given alphabet series: A, A, B, D, ?
Identifying the Series Logic
We can solve this by looking at the position of each letter in the alphabet and the difference between consecutive positions.
- A is the 1st letter.
- A is the 1st letter.
- B is the 2nd letter.
- D is the 4th letter.
Calculating the Pattern
Let's assign numerical values based on alphabet position:
- 1st term: A = 1
- 2nd term: A = 1
- 3rd term: B = 2
- 4th term: D = 4
Now, let's find the difference between the numerical values of consecutive terms:
- Difference between 2nd and 1st term: $1 - 1 = 0$
- Difference between 3rd and 2nd term: $2 - 1 = 1$
- Difference between 4th and 3rd term: $4 - 2 = 2$
The differences are increasing sequentially: 0, 1, 2. The next difference in this sequence should be 3.
Determining the Missing Letter
To find the position of the next term (?), we add the next difference (3) to the position of the last known term (D = 4):
- Position of '?' = Position of D + Next difference
- Position of '?' = $4 + 3 = 7$
The 7th letter in the alphabet is G.
Therefore, the letter that replaces the question mark (?) is G.
Similar Questions
- Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
AZP, BYQ, CXR, ? Select the letter from among the given options that can replace the question mark (?) in the following series.
H3K9N15Q21?
- What should come in place of the question mark (?) in the given series based on the English alphabetical order?
DKC ZGY ? RYQ NUM - A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
XPC, QHT, JZK, CRB, ? - Select the letter from among the given options that can replace the question mark (?) in the following series.
Z, W, T, Q, N, ? - Select the letter from among the given options that can replace the question mark (?) in the following series.
D, I, N, S, ? - Select the letter-cluster that can replace the question mark (?) in the following series.
CNQ, DOR, EPS, FQT, ? Select the combination of letters that when sequentially placed in the blanks will create a repetitive pattern.
mmnn _, _ pmmnnnp _, _ mnnn _, _- Select the letters from the given options that can replace the question marks (?) in the following series.
J L K M O N P R Q S ? ? - From the given options, Select the letter-cluster that can replace the question mark (?) in the following series.
ZAB, DEF, HIJ, NOP, ?
Important Questions from Letter Based Series
Select the related word/letters/numbers from the given alternatives:
Money : Poverty : : Education : ?Select the related word/letters/numbers from the given alternatives:
BEF : GJK : : LOP : ?Select the related word/letters/numbers from the given alternatives:
8 : 32 : : ? : 108For the following questions, find the odd word/letters/number from the given alternatives:
For the following questions, find the odd word/letters/number from the given alternatives:
