Quantity I: Tara invested a certain amount in a simple interest scheme at a rate of 18% per annum for 5 years, while Rina invested the same amount in a compound interest scheme at a rate of 15% per annum for 2 years. If the interest earned by Tara from the simple interest scheme is ₹3176.25 more than the interest earned by Rina, find the amount invested by Tara. Quantity II: Varun invests ₹x in a simple interest scheme at a rate of 16% per annum for 4 years, and he also invests ₹4500 in another simple interest scheme at a rate of 18% per annum for 3 years. If the interest from the first scheme is ₹770 more than the interest from the second scheme, find the value of
x.