A certain sum amounts to Rs 7935 in 2 years and Rs 9125.25 in 3 years, under compound interest. Find the sum borrowed if interest is compounded annually. (in Rs.)

A certain sum amounts to Rs 13,310 after 3 years and to rs 16,105.10 after 5 years under compound interest. Find the sum borrowed, if the interest is compounded annually. In (Rs.)

A sum of money amounts to Rs. 4500 in 2 years and Rs. 6750 in 4 years Compound Interest. Find the sum.

A sum of money amounts to Rs. 3200 in 4 years and Rs. 8000 in 8 years on compound interest. Find the sum.

A sum of money becomes Rs. 3600 in 2 years and Rs. 5184 in 4 years on compound interest. Find the rate of compound interest.

A certain sum amounts to Rs 72900 in 2 years at 8% per annum compound interest, compounded annually. Find the sum.