When \( 10 \, \text{mL} \) of an aqueous solution of \( \mathrm{KMnO_4} \) was titrated in acidic medium, equal volume of \( 0.1 \, \text{M} \) of an aqueous solution of ferrous sulphate was required for complete discharge of colour. The strength of \( \mathrm{KMnO_4} \) in grams per litre is __________ \( \times 10^{-2} \). (Nearest integer)
[Atomic mass of \( \mathrm{K} = 39 \), \( \mathrm{Mn} = 55 \), \( \mathrm{O} = 16 \)]
