Pawan, Qureshi, and Ram started a business with initial investments of Rs. (x + 1500), Rs. x, and Rs. (x - 1000), respectively. Quantity I: Given that the total profit after one year is Rs. 17,760, and Qureshi's share of the profit is Rs. 5,760, determine Pawan's initial investment. Quantity II: If Pawan, Qureshi, and Ram invested their amounts for y, 2y, and 3y months, respectively, and Ram's profit share is Rs. 10,000 from a total profit of Rs. 23,750, find the initial investment made by Qureshi.