Discussion
If P means ‘division; T means ‘addition; M means ‘subtraction’ and D means ‘multiplication’, then what will be the value of the expression 12 M 12 D 28 P 7 T 15?
Answer: D
Correct answer: – 21
Substituting gives \[ 12 - 12 \times 28 \div 7 + 15. \] Multiplication and division first: \( 12\times28 = 336 \), \( 336\div7 = 48 \). Then \( 12 - 48 + 15 = -21 \). The negative result is the point of the item - the middle term is far larger than either of the others.
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