Calculate the compound interest accrued on ₹ 6000 in 3 years, compounded yearly, if the rates for the successive years are 5%, 8% and 10% respectively.

What sum of money will amount to ₹ 5445 in 2 years at 10% per annum compound interest ?

Find the sum on which the compound interest for 3 years at 10% per annum amounts to ₹ 1655.

At what rate per cent per annum will ₹ 6000 amount to ₹ 6615 in 2 years when interest is compounded annually ?