Question 47

What will come in the place of ‘?’ in the following equation, if ‘+’ and ‘$$\times$$‘ are interchanged and also ‘−’ and ‘$$\div$$’ are interchanged?
$$42 + 6 − 3 \times 15 \div 5 = ?$$

Solution

$$42\ +\ 6\ -\ 3\times\ 15\ \frac{\ 5}{ }=?$$

After interchange the + and *, - and/

$$42\times\ 6\ \frac{\ 3}{ }\ +\ 15\ -\ 5=?$$

$$252\ \frac{\ 3}{ }\ +\ 10=?$$

$$84\ +\ 10=?$$

$$94=?$$
Hence option A is the correct answer

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What will come in the place of ‘?’ in the following equation, if ‘+’ and ‘$$\times$$‘ are interchanged and also ‘−’ and ‘$$\div$$’ are interchanged?$$42 + 6 − 3 \times 15 \div 5 = ?$$