If Q stands for $+$, H stands for $-$, O stands for $\times$, N stands for $\div$, then what is the value of the given equation?
140 Q 297 N 9 H 6 O 14 = ?
91
67
89
81
Solution
Q $\Rightarrow +$ ; N $\Rightarrow \div$ ; H $\Rightarrow -$ ; O $\Rightarrow \times$
140 Q 297 N 9 H 6 O 14
= 140 $+$ 297 $\div$ 9 $-$ 6 $\times$ 14
= 140 $+$ 33 $-$ 6 $\times$ 14
= 140 $+$ 33 $-$ 84
= 173 $-$ 84
= 89