Operator-code puzzle — If x → +, < → −, + → ÷, > → ×, − → =, ÷ → >, = → <, which of the following becomes a true statement?
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A3 x 4 > 2 - 9 + 3 < 3
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B5 x 3 < 7 ÷ 8 + 4 x 1
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C5 > 2 + 2 = 10 < 4 x 8
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D3 x 2 < 4 ÷ 16 > 2 + 4
Answer
Correct Answer: 5 > 2 + 2 = 10 < 4 x 8
Explanation
Introduction / Context:Each printed symbol stands for a different real operator. We must decode each option using the mapping and then test whether the resulting mathematical/relational statement is true.
Given Data / Assumptions:
- Mapping: x→+, <→−, +→÷, >→×, −→=, ÷→>, =→<.
- Standard precedence for × and ÷ over + and −, and relational comparisons applied after arithmetic.
Concept / Approach:Decode token by token, then evaluate LHS and RHS parts around any relation(s).
Step-by-Step Solution:Option C: “5 > 2 + 2 = 10 < 4 x 8” decodes to5 × 2 ÷ 2 < 10 − 4 + 8Left: 5 × 2 ÷ 2 = 5. Right: 10 − 4 + 8 = 14. Hence 5 < 14 is true.Other options decode to false comparisons after evaluation.
Verification / Alternative check:Re-evaluating Option C with strict precedence gives the same result (true); A, B, D evaluate to false.
Why Other Options Are Wrong:They yield contradictions (e.g., Option A decodes to 11 = 0, false).
Common Pitfalls:Applying the mapping twice or forgetting that ÷ maps to the relational ‘>’ in the decoded form.
Final Answer:5 > 2 + 2 = 10 < 4 x 8 is the only true statement after decoding.