In a certain code STAPLE is written as RSZOKD . How is DIGEST written in that code?

Options

A. CHRDFS
B. CHDFRS
C. CHFDRS
D. CHDRFS

Answer

To solve the problem of how the word "DIGEST" is coded based on the provided example of "STAPLE" being written as "RSZOKD", we need to analyze the pattern used in the coding.

### Step-by-Step Solution:

1. **Identify the letters in "STAPLE" and their corresponding coded letters in "RSZOKD":**
- S → R
- T → S
- A → Z
- P → O
- L → K
- E → D

2. **Determine the relationship between the letters:**
- S (19) → R (18): Move back 1 position in the alphabet.
- T (20) → S (19): Move back 1 position in the alphabet.
- A (1) → Z (26): Move back 1 position in a circular manner (A to Z).
- P (16) → O (15): Move back 1 position in the alphabet.
- L (12) → K (11): Move back 1 position in the alphabet.
- E (5) → D (4): Move back 1 position in the alphabet.

From this, we can see that each letter in "STAPLE" is replaced by the letter that comes before it in the alphabet.

3. **Apply the same coding pattern to "DIGEST":**
- D (4) → C (3): Move back 1 position.
- I (9) → H (8): Move back 1 position.
- G (7) → F (6): Move back 1 position.
- E (5) → D (4): Move back 1 position.
- S (19) → R (18): Move back 1 position.
- T (20) → S (19): Move back 1 position.

4. **Combine the coded letters:**
- C, H, F, D, R, S

5. **Final coded word for "DIGEST":**
- Therefore, "DIGEST" is coded as "CHFDRS".

6. **Check against the options:**
- The options given were:
1. CHRDFS
2. CHDFRS
3. CHFDRS
4. CHDRFS
- The correct answer is option 3: CHFDRS.