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What will come in the place of the question mark '(?)' in the following equation, if '÷' and '×' are interchanged and '+' and '-' are interchanged? 20
Question

What will come in the place of the question mark '(?)' in the following equation, if '÷' and '×' are interchanged and '+' and '-' are interchanged?
20 - 7 ÷ 4 + 20 × 4 = ?

A.

43

B.

41

C.

44

D.

42

Correct option is A

Given:20 - 7 ÷ 4 + 20 × 4 = ?
Sign
÷
+
Interchange sign
×
-
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}​​
After interchanging the sign in the given equation will be: 
20 + 7 × 4 - 20 ÷ 4 = ?
? = 20 + 7 × 4 - 5
? =  ​​​20 + 28 - 5 
? =  48 - 5 
? =  43
Thus, the correct option is (a) 43.

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