Looking at the code for AIR = 31120, we need to identify the pattern.
The code 31120 represents a 3-letter word, so it breaks down as: 3-11-20
Finding the letter positions in the alphabet:
- A is the 1st letter
- I is the 9th letter
- R is the 18th letter
Analyzing the pattern:
- A (position 1) → 3
- I (position 9) → 11
- R (position 18) → 20
Checking the relationship:
- 1 + 2 = 3 ✓
- 9 + 2 = 11 ✓
- 18 + 2 = 20 ✓
The pattern is: alphabetical position + 2
Applying the pattern to GAS:
Finding letter positions:
- G is the 7th letter
- A is the 1st letter
- S is the 19th letter
Applying the code:
- G: 7 + 2 = 9
- A: 1 + 2 = 3
- S: 19 + 2 = 21
Therefore, GAS = 9321
The answer is Option 4: 9321