\( 15 \, \text{mL} \) of aqueous solution of \( \mathrm{Fe^{2+}} \) in acidic medium completely reacted with \( 20 \, \text{mL} \) of \( 0.03 \, \text{M} \) aqueous \( \mathrm{Cr_2O_7^{2-}} \). The molarity of the \( \mathrm{Fe^{2+}} \) solution is ______ \( \times 10^{-2} \, \text{M} \). (Round off to the Nearest Integer).
