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What will come in the place of ‘?’ in the following equation, if ‘+’ and ‘−‘ are interchanged and ‘×’ and ‘÷’ are interchanged?45 ÷ 12 − 75 × 5 +
Question

What will come in the place of ‘?’ in the following equation, if ‘+’ and ‘−‘ are interchanged and ‘×’ and ‘÷’ are interchanged?
45 ÷ 12 − 75 × 5 + 13 = ?​

A.

546

B.

542

C.

545

D.

544

Correct option is B

Given:  45 ÷ 12 − 75 × 5 + 13 = ?
Given sign
+
×
Interchange

÷

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 Expression: 45 × 12 + 75 ÷ 5 − 13 = ?
45 × 12 + 15 − 13 = ?
540 + 15 − 13 = ?
? = 542
Thus, correct option is (b).

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