GATE Civil Engineering (CE) 2018 Shift 1 Solved Paper

The ultimate $\mathit{B}\mathit{O}\mathit{D}\left({\mathit{L}}_0\right)$ a wastewater sample is estimated as $87\%$ of COD. The COD of this wastewater is $300\mathit{m}\mathit{g}/\mathit{L}$. Considering first order BOD reaction rate constant $\mathit{k}$ (use natural $\log )=2.3$ per day and temperature coefficient $\mathit{\theta }=1.047$, the BOD value (in $\mathit{m}\mathit{g}/\mathit{L}$, up to one decimal place) after three days of incubation at ${27}^{\circ }\mathit{C}$ for the wastewater will be __________