Discussion
In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?
72 x 9 - 14 + 2 = ?
Answer: D
Correct answer: 36
The code swaps the symbols: \( + \to \times \), \( - \to + \), \( \times \to \div \), \( \div \to - \). So \( 72 \times 9 - 14 + 2 \) is read as \( 72 \div 9 + 14 \times 2 \).
Applying BODMAS to the decoded expression: \[ 72 \div 9 + 14 \times 2 = 8 + 28 = \mathbf{36} \]
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