If A means '+', B means '×', C means '÷' and D means '-', then what is the value of 17A12B20C5D12?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 53
Each letter is first replaced by the sign it stands for; the expression is then worked out by the BODMAS order: division and multiplication before addition and subtraction.
A = +, B = ×, C = ÷, D = −, so 17A12B20C5D12 becomes \(17+12\times20\div5-12\)
Division first: \(20\div5=4\)
Then multiplication: \(12\times4=48\)
\(17+48-12=53\)