Symbol–digit–letter code: BEAM → 5%*K and COME → $7K%. Using the same mapping, encode BOMB.

Introduction / Context:
We are given two coded words that reveal a one-to-one mapping from letters to symbols or digits. The task is to reuse the same mapping to encode a new word.

Given Data / Assumptions:

• BEAM → 5 % * K
• COME → $ 7 K %
• Hence mappings: B→5, E→%, A→*, M→K, C→$, O→7.

Concept / Approach:
Apply the mapping letter by letter to BOMB. Remove spacing to keep a clean, unambiguous code string.

Step-by-Step Solution:
B → 5O → 7M → KB → 5Therefore, BOMB → 57K5.

Verification / Alternative check:
Cross-check by reversing: 57K5 decodes back to BOMB using the same dictionary.

Why Other Options Are Wrong:

• 5%K5: Uses E’s symbol % instead of O’s 7.
• $7K$: Mixes C and O incorrectly and uses C twice.
• 5$%5: Combines B, C, and E symbols; does not match O and M positions.

Common Pitfalls:
Confusing O with 0, retaining spaces from examples, or misreading symbol assignments.

Final Answer:
57K5