Question 23

If $$+$$ means $$−$$, $$−$$ means $$\times$$, $$\times$$ means $$\div$$, and $$\div$$ means $$+$$, then what will be the value of following expression?
$$50 + 10 \div 25 \times 5 - 3 = ?$$

Solution

Given expression $$50 + 10 \div 25 \times 5 - 3 = ?$$

$$\Rightarrow 50 - 10 + 25 \div 5 \times 3 = ? $$ ( change to the sign for given condition )

$$\Rightarrow 50 - 10 + 5 \times 3 = ? $$

$$\Rightarrow 50 - 10 + 15= ? $$

$$\Rightarrow 65 - 10 = ? $$

$$\Rightarrow ? = 55 $$ Ans

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If $$+$$ means $$−$$, $$−$$ means $$\times$$, $$\times$$ means $$\div$$, and $$\div$$ means $$+$$, then what will be the value of following expression?$$50 + 10 \div 25 \times 5 - 3 = ?$$