Find the amount and the compound interest on ₹8,000 for 2 years at 5% per annum.

In how many years will ₹1,000 amount to ₹1,331 at 10% per annum compound interest?

The difference between the compound and the simple interest on a sum P for 2 years at r% per annum is:

At what rate per cent per annum will ₹4,000 amount to ₹4,410 in 2 years, compounded annually?

Find the amount on ₹6,250 for 2 years at 4% per annum compounded annually.

Find the compound interest on ₹10,000 for 3 years at 10% per annum.

The value of a machine costing ₹50,000 depreciates at 10% per annum. Find its value after 2 years.