On what sum of money will the compound interest for 2 years at 8% per annum be ₹ 7,488?

The difference between the simple interest and the compound interest on a sum of money for 2 years at 12% per annum is ₹ 216. Find the sum.

The difference between the compound interest for 1 year, compounded half-yearly and the simple interest for 1 year on a certain sum of money at 10% per annum is ₹ 360. Find the sum.

At what rate per cent per annum compound interest will ₹ 6,250 amount to ₹ 7,290 in 2 years?