Discussion
If ‘+’ means ‘divided by’, ‘-‘ means ‘added to’, ‘×’ means ‘subtracted from’ and ‘÷’ means ‘multiplied by’, then what is the value of 15 ÷ 12 - 36 + 3 ?
Answer: C
Correct answer: 192
Substituting gives \[ 15 \times 12 + 36 \div 3 = 180 + 12 = 192. \] Note that the two symbols are exchanged in an unexpected direction here - the divide sign means multiply and the plus means divide - so reading the expression at face value would give something quite different.
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