SSC CHSL 07 Aug 2023 Shift 1 Paper

Ravi borrowed some money at the rate of 5% per annum for the first three years, 8% per annum for the next two years. and 10% per annum for the period beyond 5 years. If he paid a total simple interest of ₹12,750 at the end of 7 years, then how much money did he borrow?