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All questions of Alpha-Numeric Sequence Puzzle for Class 7 Exam

In each of the following questions, an alphabet series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.
Q. A, B, N, C, D, O, E, F, P, ?, ?, ?
  • a)
    G, H, I
  • b)
    G, H, J
  • c)
    G, H, Q
  • d)
    J, K, L
Correct answer is option 'C'. Can you explain this answer?

The given series may be divided into 2 groups :
I. A, B, C, D, E, F, ?, ? and II. N, O, P, ?
Clearly, the given series consists of two terms of I followed by one term of II.
The missing terms in I are G and H while the missing term in II is Q.

In each of the following questions, an alphabet series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.
Q. A, B, B, D, C, F, D; H, E, ?, ?
  • a)
    E, F
  • b)
    F, G
  • c)
    F, I
  • d)
    J, F
Correct answer is option 'D'. Can you explain this answer?

Lavanya Menon answered
The given sequence is a combination of two series:
I. 1st, 3rd, 5th, 7th, 9th, 11th terms i.e. A, B,C, D, E, ? II. 2nd, 4th, 6th, 8th, 10th terms i.e.B, D, F, H, ?
Clearly, I consist of consecutive letters while II consists of alternate letters. So, the missing letter in I is F, while that in II is J. So, the missing terms i.e. 10th and 11th terms are J and F respectively.

In each of the following letter series, some of the letters are missing, which are given in such order as one of the alternativesbelow it. Choose the correct alternative.
Q. ab _ _ baa _ _ ab _
  • a)
    aaaaa
  • b)
    aabaa
  • c)
    aabab
  • d)
    baabb
Correct answer is option 'B'. Can you explain this answer?

Smita patil answered
Explanation:
The given letter series is "ab _ _ baa _ _ ab _". We need to find the missing letters in the series.

Step 1: Analyze the given letter series
We can see that the series starts with "ab" and ends with "ab". So the missing letters should be between these two "ab" in the series.

Step 2: Determine the pattern
To find the pattern, let's look at the first "ab". The letter before "a" is "b" and the letter after "a" is "b". So, the missing letters between the first "ab" could be "b".

Now, let's look at the second "ab". The letter before "a" is "a" and the letter after "a" is "b". So, the missing letters between the second "ab" could be "ab".

Step 3: Fill in the missing letters
Based on the pattern we determined, we can fill in the missing letters in the series:

ab _ _ baa _ _ ab _
ab b baa ab ab

Step 4: Compare the options
Now, let's compare the filled series with the given options:

a) aaaaa
b) aabaa
c) aabab
d) baabb

The filled series "abbbbaaabab" matches with option B "aabaa".

Therefore, the correct answer is option B "aabaa".

In each of the following questions, an alphabet series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.
Q. CMM, EOO, GQQ, ______, KUU
  • a)
    GRR
  • b)
    GSS
  • c)
    ISS
  • d)
    ITT
Correct answer is option 'C'. Can you explain this answer?

Sonal Dasgupta answered
The first letters are in alphabetical order with a letter skipped in between each segment: C, E, G, I, K. The second and third letters are repeated; they are also in order with a skipped letter: M, O, Q, S, U.

In each of the following questions, an alphabet series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.
Y, B, T, G, O, ?
  • a)
    N
  • b)
    M
  • c)
    L
  • d)
    K
Correct answer is option 'C'. Can you explain this answer?

Sai Kaur answered
The given sequence is a combination of two series:
i.)Y,T, O and ii.)B, G, ?
i. consists of 2nd, 7th, 12th letters from end of English alphabet,while
ii. consists of 2nd, 7th, 12th letters from beginning of English alphabet
So, the missing letter in ii.) is the 12th letter from the beginning of English alphabet,which is L.

In each of the following questions, an alphabet series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.
ZA5, Y4B, XC6, W3D, ______
  • a)
    E7V
  • b)
    V2E
  • c)
    VE5
  • d)
    VE7
Correct answer is option 'D'. Can you explain this answer?

Mahesh Sen answered
There are three series to look for here. The first letters are alphabetical in reverse: Z, Y, X, W, V. The second letters are in alphabetical order, beginning with A. The number series is as follows: 5, 4, 6, 3, 7.

In each of the following questions, an alphabet series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.
b e d f ? h j ? l
  • a)
    i m
  • b)
    m i
  • c)
    i n
  • d)
    j m
Correct answer is option 'A'. Can you explain this answer?

Deepak Mehra answered
The series may be divided into groups as shown :

b  e  d  /  f  i  h  /  j  m  l

In each group, first letter is moved two steps forward to obtain the third letter

while the third letter is moved one step forward to obtain the second lette

In each of the following questions, an alphabet series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.
Q. AB, DEF, HIJK, ?, STUVWX
  • a)
    LMNO
  • b)
    LMNOP
  • c)
    MNOPQ
  • d)
    QRSTU
Correct answer is option 'C'. Can you explain this answer?

Naina Basu answered
The number of letters in the terms goes on increasing by 1 at each step.

Each term consists  of letters in alphabetical order.

The last letter of each term and the first letter of the next term are alternate.

In each of the following questions, an alphabet series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.
Q. JAK, KBL, LCM, MDN, ______
  • a)
    OEP
  • b)
    NEO
  • c)
    MEN
  • d)
    PFQ
Correct answer is option 'B'. Can you explain this answer?

Swara Mehta answered
This is an alternating series in alphabetical order. The middle letters follow the order ABCDE. The first and third letters are alphabetical beginning with J. The third letter is repeated as a first letter in each subsequent three-letter segment.

In each of the following questions, an alphabet series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.
Q. FAG, GAF, HAI, IAH, ______
  • a)
    JAK
  • b)
    HAL
  • c)
    HAK
  • d)
    JAI
Correct answer is option 'A'. Can you explain this answer?

Prateek Sharma answered
The middle letters are static, so concentrate on the first and third letters. The series involves an alphabetical order with a reversal of the letters. The first letters are in alphabetical order: F, G, H, I , J. The second and fourth segments are reversals of the first and third segments. The missing segment begins with a new letter.

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