If the difference between the compound and simple interests on a certain sum of money for 3 years at 5% per annum is Rs 15.25, find the sum.

If the difference between the compound and simple interest on a certain sum of money for 2 years at 8% per annum is 3160, find the sum.

The difference between the compound interest and simple interest on a certain sum for 2 years at 7.5% per annum is Rs 360. Find the sum.

The difference between the compound interest and simple interest on a certain sum for 2 years at 7.5% per annum is Rs 360. Find the sum.

The difference between the compound interest and the simple interest on a certain sum for 2 years at 6% per annum is Rs 90. Find the sum.

The differecnce between the compound interest and th simple interest on a certain sum for 3 years at 10% per annum is Rs 93. Find the sum.

The difference between compound interest and simple interest on a certain sum of money for 3 years at 5% per annum is Rs. 122. Find the principal.