Find the simple interest on Rs.11400 at 45% per annum for 6 months. (In Rs.)

What is the rate percent and time needed, both of them being equal in value, for the simple interest on a certain sum to be 36 over 100 of that sum?

The difference between the simple and the compound interest on a certain sum of money for 3 years at 10% p.a is Rs. 77.50. Find the sum.

Find the compound interest on ₹ 31250 for 9 months at 16% per annum when the interest is calculated quarterly.

Ravi lent ₹12,000 to his friend at a simple interest rate of 8% per annum. After how many years will the total amount become ₹16,800 ?

Mr.Jacob invested Rs. 17,500 dividing into two different schemes A and B at simple interest rate of 20% and 7.5% respectively. If the total amount of the simple interest earned in 2 years is Rs.3775, what was the amount invested in scheme A? (In Rs.)

A sum of money at simple interest amounts to Rs.7395 in 3 years and to Rs.8160 in 4 years. Find the sum. (In Rs.)

What is the difference between the compound interests on Rs.15000 for 1 year at 6% per annum compounded yearly and half-yearly? (In Rs.)

At the end of two years what will be the compound interest at the rate of 10% p.a. on an amount of Rs.7200? (In Rs.)

Find the simple interest on Rs.11400 at 45% per annum for 6 months. (In Rs.)

What sum (in ₹) will earn a simple interest of ₹840 in 3 years at 20% per year rate of interest?