Question 20

Which two signs should be interchanged to make the given equation correct?
$$20 + 5 \times 3 \div 3 - 1 = 14$$

Solution

By Trial and error method,

$$20\div5\times3+3-1=14$$

$$4\times3+3-1=14$$

$$12+3-1=14$$

$$14=14$$

$$\therefore\ $$By interchanging $$\div$$ and $$+$$ sign the given equation is correct

Hence, the correct answer is Option A

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Which two signs should be interchanged to make the given equation correct?$$20 + 5 \times 3 \div 3 - 1 = 14$$