For a certain period, simple interest on Rs. 1000 at 10% per annum is Rs. 100 more than that on Rs. 800. Find the period (in years).

In what time will the simple interest on ₹2200 at 6% per annum be the same as that on ₹1650 at 9% per annum in 10 years?

Consider the simple interest of the following

(A) The simple interest on Rs 8,930 at 6% per annum for 5 years

(B) The simple interest on Rs 3,080 at 13.50% per annum for 4 years

(C) The simple interest on Rs 7,200 at 14.00 % per annum for 7 years

(D) The simple interest on Rs. 3,120 at 4.00 % per annum for 5 years

The simple interests of these in increasing order are:

Choose the correct answer from the options given below:

If the difference between the compound and simple interests on a certain sum of money for 2 years at 20% per annum is ₹ 64, then the sum in ₹ will be:

A sum of Rs. 1500 is invested at 5% p.a. simple interest. If the interest is added to the principal after every 10 years, the amount will become Rs. 3000 after :

The simple interest on a sum of money at 12% per annual for 8 years is half of the sum. The sum is______.

On compound interest, Rs. 2,000 amounts to Rs. 2,226.05 in 2 years. What is the rate of interest per annum ?