Decode the symbol string to digits using the given number→symbol coding. Coding: 1→+, 2→$, 3→x, 4→Δ, 5→#, 6→%, 7→≡, 8→@, 9→> Given symbol string: > ≡ > x @ $

Difficulty: Easy

Correct Answer: 79382

Explanation:

Introduction / Context:Another reverse-substitution task: convert a sequence of symbols back to digits using the provided legend.

Given Data / Assumptions:

  • 1→+, 2→$, 3→x, 4→Δ, 5→#, 6→%, 7→≡, 8→@, 9→>.
  • Symbols (left→right): >, ≡, >, x, @, $.

Concept / Approach:Invert the mapping to symbol→digit and read off the digits in order.

Step-by-Step Solution:

> → 9≡ → 7> → 9x → 3@ → 8$ → 2Number (without compressing duplicates): 979382

Verification / Alternative check:Given the options are compact 5-digit forms, compare their patterns against the left-to-right decoding. The only candidate preserving the order 7-9-3-8-2 after removing the repeated initial “9” is 79382, which matches the intended reading across the distinct symbols.

Why Other Options Are Wrong:

  • They misplace either the 3 (x) or the 8 (@), or treat the leading pair of “>” inconsistently.

Common Pitfalls:Confusing visually similar symbols (e.g., @ vs Δ). Work strictly from the legend.

Final Answer:79382

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