Discussion
If "+" denotes "divided by", "x" denotes "added to", "÷" denotes "subtracted from" and "-" denotes "multiplied by", then
54 + 162 - 18 x 12 ÷ 6 = ?
Answer: C
Correct answer: 12
Replacing the words by their symbols gives \( 54 \div 162 \times 18 + 12 - 6 \), which is \[ \frac{54}{162} \times 18 + 6 = 6 + 6 = \mathbf{12} \]
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