What will be the missing term '?' in the given series ?
AK, FP, ?, PZ, UE, ZJ

Options

A. KU
B. JT
C. JU
D. KV

Answer

To find the missing term in the series AK, FP, ?, PZ, UE, ZJ, we can analyze the pattern in the series step by step.

### Step 1: Identify the pattern in the first letters of the pairs
The first letters of the pairs are: A, F, ?, P, U, Z.

- A is the 1st letter of the alphabet.
- F is the 6th letter of the alphabet.
- P is the 16th letter of the alphabet.
- U is the 21st letter of the alphabet.
- Z is the 26th letter of the alphabet.

Now, let's find the difference between the positions of these letters:
- From A (1) to F (6): 6 - 1 = 5
- From F (6) to P (16): 16 - 6 = 10
- From P (16) to U (21): 21 - 16 = 5
- From U (21) to Z (26): 26 - 21 = 5

### Step 2: Determine the missing letter
The pattern in the first letters alternates between a jump of 5 and a jump of 10.

So, after F (6), we should have a letter that is 10 positions ahead:
- 6 + 10 = 16, which corresponds to P.

Now we need to find the letter that is 5 positions ahead of F (6):
- 6 + 5 = 11, which corresponds to K.

Thus, the missing letter is K.

### Step 3: Identify the pattern in the second letters of the pairs
The second letters of the pairs are: K, P, ?, Z, E, J.

- K is the 11th letter of the alphabet.
- P is the 16th letter of the alphabet.
- Z is the 26th letter of the alphabet.
- E is the 5th letter of the alphabet.
- J is the 10th letter of the alphabet.

Now, let's find the difference between the positions of these letters:
- From K (11) to P (16): 16 - 11 = 5
- From P (16) to Z (26): 26 - 16 = 10
- From Z (26) to E (5): 5 + 26 - 1 = 5 (considering the circular nature of the alphabet)
- From E (5) to J (10): 10 - 5 = 5

### Step 4: Determine the missing second letter
The pattern in the second letters also alternates between a jump of 5 and a jump of 10.

So, after K (11), we should have a letter that is 5 positions ahead:
- 11 + 5 = 16, which corresponds to P.

Now we need to find the letter that is 10 positions ahead of P (16):
- 16 + 10 = 26, which corresponds to Z.

Thus, the missing second letter is U.

### Conclusion
Combining both parts, the missing term in the series is **KU**.