Question 45

What will come in the place of ‘?’ in the following equation, if ‘$$\times$$’ and ‘ - ‘ are interchanged and also ‘+’ and ‘$$\div$$’ are interchanged?
$$10 \times 4 + 2 − 5 \div 4 = ?$$

Solution

$$10\times\ 4\ +\ 2\ -\ 5\ \frac{\ 4}{ }=?$$

after interchange *and- , +and/
$$10\ -\ 4\ \frac{\ 2}{ }\times\ 5\ +\ 4=?$$

$$10\ -2\times\ 5\ +\ 4=?$$

$$10\ -10+\ 4=?$$

$$0+\ 4=?$$

$$\ 4=?$$

Hence option C is the correct answer

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What will come in the place of ‘?’ in the following equation, if ‘$$\times$$’ and ‘ - ‘ are interchanged and also ‘+’ and ‘$$\div$$’ are interchanged?$$10 \times 4 + 2 − 5 \div 4 = ?$$