What will be the next term in the below series ?
C3A1 , G7E5 _______ ?

Options

A. I8K 10
B. I9K11
C. K11I9
D. K10I8

Answer

To find the next term in the series C3A1, G7E5, we will analyze the pattern in the series step by step.

### Step 1: Analyze the first term (C3A1)
- The first part is "C" which is the 3rd letter of the alphabet.
- The second part is "3" which is a number.
- The third part is "A" which is the 1st letter of the alphabet.
- The last part is "1" which is a number.

So, we have:
- C = 3 (3rd letter)
- 3 = 3
- A = 1 (1st letter)
- 1 = 1

### Step 2: Analyze the second term (G7E5)
- The first part is "G" which is the 7th letter of the alphabet.
- The second part is "7" which is a number.
- The third part is "E" which is the 5th letter of the alphabet.
- The last part is "5" which is a number.

So, we have:
- G = 7 (7th letter)
- 7 = 7
- E = 5 (5th letter)
- 5 = 5

### Step 3: Identify the pattern
Now, let's look at the pattern:
1. The first letters are C (3) and G (7). The difference between their positions is 4 (7 - 3 = 4).
2. The numbers following the letters are also increasing: 3 to 7 (increased by 4).
3. The second letters are A (1) and E (5). The difference between their positions is 4 (5 - 1 = 4).
4. The numbers following the second letters are also increasing: 1 to 5 (increased by 4).

### Step 4: Predict the next term
Following the established pattern:
1. The next letter after G (7) would be K (11) since we add 4 to the position of G (7 + 4 = 11).
2. The next number after 7 would be 11 (7 + 4 = 11).
3. The next letter after E (5) would be I (9) since we add 4 to the position of E (5 + 4 = 9).
4. The next number after 5 would be 9 (5 + 4 = 9).

### Conclusion
Thus, the next term in the series is K11I9.

### Final Answer
K11I9