If ‘A’ stands for ‘÷’, ‘B’ stands for ‘×’, ‘C’ stands for ‘+’ and ‘D’ stands for ‘-’, then what will come in place of the question mark (?) in the following equation? \(4\ B\ 2\ D\ 18\ A\ 6\ C\ 3 = \ ?\)
8
Substitute the coded symbols: A → ÷, B → ×, C → +, D → -.
The expression becomes \(4 \times 2 - 18 \div 6 + 3\).
Apply BODMAS. First carry out × and ÷: \(4 \times 2 = 8\) and \(18 \div 6 = 3\).
The expression reduces to \(8 - 3 + 3\).
Now add and subtract from left to right: \(8 - 3 = 5\) and \(5 + 3 = 8\).
Hence, the value in place of the question mark is 8.
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