A certain sum of money amounts to `Rs. 756` in 2 yr and to `Rs. 873` in `3\ 1/2`yr at a certain rate of simple interest. The rate of interest per annum is

A certain sum of money amounts to Rs 756 in 2 yr and to Rs 873 in 3frac(1)(2) yr at a certain rate of simple interest. The rate of interest per annum is

A sum amounts to Rs. 5600 in 4 years and Rs. 6400 in 6 years at a certain rate of simple interest. Find the rate of interest per annum and the sum.

A certain sum of money amounts to Rs. 918 in 2 years and Rs. 969 in 3.5 years at simple interest. What is the rate of interest (in % per annum)?

A certain sum of money amounts to 756 in 2 years and to 873 in 3.5 years. Find the sum and the rate of interest.

A certain sum of money amounts to Rs 4200 in 3 years and to Rs 6000 in 6 years at simple interest. Find the rate of interest.

A certain sum of money amounts to Rs. 2420 in 2 years and Rs. 2662 in 3 years at some rate of compound interest, compounded annually. The rate of interest per annum is:

If a certain sum of money at simple interest amounts to Rs. 5184 in 2 years and to Rs. 5832 in 3 years, what is the sum and the rate of interest?