Question 6

Which two signs should be interchanged in the following equation to make it correct?
$$10 + 5 \div 10 \times 8 - 10 = 16$$

Solution

In the given question,

$$10 + 5 \div 10 \times 8 - 10 = 16$$

If we will interchange the + to - and - to +, then

$$\Rightarrow 10 - 5 \div 10 \times 8 + 10 = 16$$

$$\Rightarrow 10 - \dfrac{1}{2} \times 8 + 10 = 16$$

$$\Rightarrow 10 - 4 + 10 = 16$$

$$\Rightarrow 6 + 10 = 16$$

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Which two signs should be interchanged in the following equation to make it correct?$$10 + 5 \div 10 \times 8 - 10 = 16$$