For the irreversible, isothermal and isobaric LIQUID phase reaction, represented by:

A $+2$B $------>4$C

a feed of $10$ mol of A and $30$ mol of B is made. If the value of the inlet volumetric flow rate is $75$ L$/$s then, for a conversion of $90\%,$ the value of the outlet volumetric flow rate would be $?$