Explanation:

Let's analyze the pattern:

- The numbers are: 11 15 914 16 ?75 31 88

Looking at the pattern:

- Sequences like 914 and ?75 suggest a combination of two numbers.

Let's break them:

- 11, 15, (914), 16, ( ?75 ), 31, 88

Notice the pairs before and after the large numbers:

- 11 (before 914), 15 (after 11)

- 16 (after 914), ? (before 75), 31 (after ?75)

- It seems the three-digit numbers are formed by placing together previous and next single numbers.

For 914:

- Previous: 9 (missing in the series)

- Next: 14 (15 is next, but 9 and 15 don’t match)

- Alternatively, maybe “914” is made of 9 and 14.

Let’s check the pattern for 75:

- What comes before and after it?

- Before: ?, After: 31

So, ?75 uses “? and 75”.

Looking at 16 and 31 surrounding ?75

- Could “?75” mean “16 + ? = 75” (which is not making sense directly)

- OR, look at difference:

- 11, 15 (increase by 4)

- 15 to 914 is a change in format, possibly “9” and “14” (splitting 914)

- After 16, ?75. So as above, 9 (from 914), then 16, then 31

Try option 1:

- If ? = 13, ?75 is 1375 (but then the next number is 31)

Try others:

- 22, 18, 25.

Let’s check difference:

- 16 to 31: Difference of 15

- 31 to 88: Difference of 57

Find a pattern:

- Hard to identify arithmetic, maybe concatenation

Look for option that fits description:

- 914 is “9” and “14” (splitting into 9 and 14)

- For ?75, “? and 75” — so must fit number between 16 and 31.

Given the number after ?75 is 31, could it signify "? = 18", because 18 is between 16 and 31. Thus, the answer is:

Option 3: 18

- The number that should replace the question mark is 18.

- The pattern is: split three-digit numbers into two parts (e.g., 914 ? 9 and 14).

- For ?75, the previous number is 16, next is 31, so ? = 18, since it fits the position both sequentially and logically.

- Option 3 (18) is the best fit.

- The correct answer is:

Option 3: 18