Divide the principal of `Rs2600` in two parts in such a way that the simple interest of the first part at a rate of `5%` for `5` years and the simple interest of the second part at a rate of `4(1)/(2)%` for `6` years are equal.

Divide the principal of Rs2186 into three parts in such a way that the amounts of each part are same at a rate of simple interest of 4% per annum, the period of time of the three parts being 1 year , 2 years and 3 years respectively. Also find the smallest part.

Divide Rs. 6305 into there parts in such a way that at the rate of compound interest of 5% per annum the amount of 1st part in 2 years, the amounts of 2nd part in 3 years and the amounts of 3rd part in 4 years are all equal.

The total interest of a principal of Rs2000 in 18 months at the rate of yearly simple interest 6% is

If the principal is double in ten years, then the rate of simple interest per annum is

Find the principal of which the monthly interest is 1Rs at the rate of 5% annual simple interest.

Find the rate of simple interest in percent per annum if the simple interest of a principal is 3/5 part of the amount in 10 years.

If a principal becomes twice of it in 10 years then the rate of simple interest is ______

If principal amounts double in 10 years, then the rate of yearly simple interest is

At what rate of simple interest in percent per annum, the ratio of principal and its interest after 20 years is 1:1 ?

Interest of Rs x for y months at the rate of 20% simple interest is