Two ammeters $X$ and $Y$ have resistances of $1.2$ $Ω$ and $1.5$ $Ω$ respectively and they give full-scale deflection with $150$ $mA$ and $250$ $mA$ respectively. The ranges have been extended by connecting shunts so as to give full scale deflection with $15$ $A$. The ammeters along with shunts are connected in parallel and then placed in a circuit in which the total current flowing is $15$ $A$. The current in amperes indicated in ammeter $X$ is __________.