"The simple interest on a certain sum of money for `2 1/2`years at 12% per annum is Rs 40 less than
Channel: Doubtnut
Date: 05/04/2020

"The simple
 interest on a certain sum of money for `2 1/2`
years at
 12% per annum is Rs 40 less than the simple interest on the same sum for `3 1/2`
years at
 10% per annum. Find the sum."