'Pritampur' and 'Kanpur' divide by (d - 100) km, while 'Kanpur' and 'Delhi' are distanced by (d + 150) km. Between the stations of Pritampur and Kanpur, the train travelled at 50 km/h, while between Kanpur and Delhi, it travelled at 30 km/h. Determine the value of "d" if it takes 35 hours to travel from "Pritampur" to "Delhi" via "Kanpur."