t_87.5 is the time required for the reaction to undergo 87.5 % completion and t_50 is the time required for the reaction to undergo 50 % completion.…

$\displaystyle \mathrm{t}_{87.5}$ is the time required for the reaction to undergo $\displaystyle 87.5 \%$ completion and $\displaystyle \mathrm{t}_{50}$ is the time required for the reaction to undergo $\displaystyle 50 \%$ completion. The relation between $\displaystyle \mathrm{t}_{87.5}$ and $\displaystyle \mathrm{t}_{50}$ for a first order reaction is $\displaystyle \mathrm{t}_{87.5}=x \times \mathrm{t}_{50}$ The value of $\displaystyle x$ is $\displaystyle \_\_\_\_$.(Nearest integer)