Consider the following reaction in aqueous solution.

$5{\text{Br}}^{-}\left(\text{aq}\right)+{\text{BrO}}_3^{-}\left(\text{aq}\right)+6{\text{H}}^{+}\left(\text{aq}\right)\to 3{\text{Br}}_{\text{2}}\left(\text{aq}\right)+3{\text{H}}_{\text{2}}\text{O}\left(\text{l}\right)$

If the rate of appearance of ${\text{Br}}_{\text{2}}$ at a particular time during the reaction is $0.025{\text{Msec}}^{-1},$ what is the rate of disappearance (in ${\text{Msec}}^{-1}$) of ${\text{Br}}^{-}$ at that time?