In how much time will the simple interest on certain sum of money at `7(1)/(2)%` per annum be `(6)/(5)` of itself ?

In how much time will the simple interest on certain sum of money at 12(1)/(2)% per annum be (7)/(4) of itself ?

In how much time will the simple interest on a sum of money at 8% p.a. be (2)/(5) of the principal ?

In what time will the interest on a certain sum of money at 6% be 5/8 of itself ?

The simple interest on a certain sum of money at 10% per annum is 6,000 in 2 years. Find the sum

The simple interest on a certain sum for 3 years at 10% per annum is Rs. 829.50. Find the sum.

Find the simple interest on : Rs 20000 for 4 1/2 years at 8 1/2 % per annum

The difference between the compound interest and simple interest on a certain sum of money at 10% per annum for 2 years is Rs 500. Find the sum when the interest is compounded annually.

Find the time in which the simple interest at 2% per annum on a sum of money is (1)/(25) of the principal.

In how much time will a sum of money triple itself at 25% per annum ?

The simple interest on a sum of money for 2 years at 4% per annum is Rs 340. Find : the sum of money and