In a water sample, the concentrations of $Ca^{2+}, Mg^{2+}$ and $\text{HCO}_{3}^{-}$ are $100$ $\text{mg/L}$, $36$ $\text{mg/L}$ and $122$ $\text{mg/L}$, respectively. The atomic masses of various elements are: $Ca = 40, Mg = 24, H = 1, C = 12, O = 6$.
The total hardness and the temporary hardness in the water sample (in $\text{mg/L}$ as $\text{CaCO}_{3}$) will be
- $400$ and $100$, respectively.
- $400$ and $300$, respectively.
- $500$ and $100$, respectively.
- $800$ and $200$, respectively.