Question

A man invested an amount at 12% per annum simple interest and another amount at 10% per annum simple interest. He received an annual interest of Rs.1145. But, if he had interchanged the amounts invested, he would have received Rs.90 less. What amounts did he invest at the different rates?​

Answer 1

Answer:

Again, the amount invested at 12 % is ₹ y and the invested at 10 % is ₹ x. But, interest received at the new rates = ₹ (2600- 140 ) = ₹ 2460.