The simple interest on a certain sum for 4 years at the rate of 15% p.a. is ₹4,500 less than the simple interest on the same sum for 6 years at the same rate of interest. Find the sum.
Vinita obtained an amount of ₹23,340 as simple interest on a certain amount at 15% per annum after 8 years. What was the amount invested by Vinita? SSC MTS 2021-08.09.2023-1