At what percent per annum will Rs. 3000 amounts to Rs. 3993 in 3 years if the interest is compounded annually?

At what percent per annum will Rs. 3000/- amount to Rs. 3993/- in 3 years if the interest is compounded annually?

At what rate per cent per annum will Rs. 1000 amount to Rs. 1331 in 3 years. The interest is compounded yearly

At what rate per cent per annum will Rs 6,000 amount to Rs 6,615 in 2 years when interest is compounded annually ?

At what rate per cent per annum will Rs. 2304 amount to Rs. 2500 in 2 years at compound interest ?

Find the rate percent per annum if Rs 2000 amount to Rs 2662 is years, interest being compounded half-yearly?