When 10 mL of an aqueous solution

When $10 \mathrm{~mL}$ of an aqueous solution of $\mathrm{Fe}^{2+}$ ions was titrated in the presence of dil $\mathrm{H}_{2} \mathrm{SO}_{4}$ using diphenylamine indicator, $15 \mathrm{~mL}$ of $0.02 \mathrm{M}$ solution of $\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}$ was required to get the end point. The molarity of the solution containing $\mathrm{Fe}^{2+}$ ions is $\mathrm{x} \times 10^{-2} \mathrm{M}$. The value of $\mathrm{x}$ is_________

(Nearest integer)