Izzat pass Rs 25 for 150 km for 30days. So 150×30=4500km. Then moeny paid per km is 2500/4500= 0.5 paise. Apologies for writing this line but even if one begs for a living he just needs Re1 per day for his travelling expenses. Yatri ki izzat bachate bachate Railways ki loot rahi hai.
For general MST, Rs 525 for 150km it means 52500/9000= 5.5paise per km. As normal monthly passes are two way so 150×2×30=9000km.