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    Select the number that will come in the place of the question mark (?) if ‘+’ and ‘–’ are interchanged and ‘×’ and ‘÷’ are interchanged.42 × 7 ÷ 13 –
    Question

    Select the number that will come in the place of the question mark (?) if ‘+’ and ‘–’ are interchanged and ‘×’ and ‘÷’ are interchanged.
    42 × 7 ÷ 13 – 67 + 13 = ?​​

    A.

    121

    B.

    129

    C.

    145

    D.

    132

    Correct option is D

    ​​
    Given: 42 × 7 ÷ 13 – 67 + 13 = ?
    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} ​​
    Given
    +
    ×
    Interchange

    ÷
     New Expression: 42 ÷ 7 × 13 + 67 – 13 = ?
    6 × 13 + 67 – 13 = ?
    78 + 67 – 13 = ?
    145 – 13 = ?
    ? = 132

    Thus, correct option is (d).










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