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If ‘+’ means ‘–’, ‘–’ means ‘×’, ‘×’ means ‘÷’ and ‘÷’ means ‘+’, then what will come inplace of the question mark (?) in the following equation?30 –
Question

If ‘+’ means ‘–’, ‘–’ means ‘×’, ‘×’ means ‘÷’ and ‘÷’ means ‘+’, then what will come inplace of the question mark (?) in the following equation?
30 – 2 ÷ 6 + 18 × 6 = ?​​

A.

57

B.

81

C.

34

D.

63

Correct option is D

Given: 30 – 2 ÷ 6 + 18 × 6 = ?​​
Given Sign
+
-
×
÷
Interchanged Sign
-
×
÷
+
Given equation is solve by BODMAS rule.
Operation preference wiseSymbolBrackets[],,()Orders, of(power),(root),ofDivision÷Multiplication×Addition+Subtraction\begin{array}{|c|c|} \hline\textbf{Operation preference wise} & \textbf{Symbol} \\\hline\text{Brackets} &[],{}, () \\ \hline \text{Orders, of} & (power), √ (root) , of \\ \hline \text{Division}& ÷ \\ \hline \text{Multiplication} & × \\ \hline \text{Addition} & + \\ \hline \text{Subtraction} & - \\\hline\end{array}
New equation: ​​30 × 2 + 6 - 18 ÷ 6 = ?
30 × 2 + 6 - 3 = ?
60 + 6 - 3 = ?
66 - 3 =?
? = 63
Thus, correct option is (d).

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