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What will come in place of the question mark (?) in the following equation, if ‘+’ and ‘–’ are interchanged, and ‘×’ and ‘÷’ are interchanged?34
Question

What will come in place of the question mark (?) in the following equation, if ‘+’ and ‘–’ are interchanged, and ‘×’ and ‘÷’ are interchanged?
34 + 43 − 17 ÷ 121 × 11 = ?​

A.

181

B.

164

C.

156

D.

178

Correct option is D

Given: 34 + 43 − 17 ÷ 121 × 11 = ?​
Given Sign
+
×\times​​
Interchanged Sign
-
÷\div​​
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: 34 - 43 + 17 × 121 ÷ 11 = ?
34 - 43 + 17 × 11 = ?
34 - 43 + 187 = ?
221 - 43 = ?
? = 178
Thus, correct option is (d).

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