Let us write by calculating the sum of money, if the difference between compound interest and simple interest for 2 years at the rate of 9% interest per annum is ₹129.60.

Let us write the rate of compound interest per annum, so that the amount on ₹400 for 2 years becomes ₹441.

Let us write true or false for the following statements

(i) The compound interest will be always less than simple interest for some money at fixed rate of interest for fixed time.

(ii) In case of compound interest, interest is to be added to principal at the fixed time interval. i.e the amount of principal increases continuously.

In case of compound interest, the rate of compound interest per annum is-

If a sum of money doubles itself at compound interest in n years, let us write in how many years will it become four times.

Let us calculate the principal that at the rate of 5% compound interest per annum becomes ₹615 after two years.

Let us write by calculating the principal which becomes ₹2648 after getting 10% compound interest per annum for 3 years.

Let us write by calculating the amount on ₹30000 at the rate of 9% compound interest per annum for 3 years.

Let us calculate the amount of ₹5000 at the rate of 8% compound interest per annum for 3 years.

Let us calculate in how many years will ₹50000 amount to ₹60500 at the rate of 10% compound interest per annum.

If simple interest and compound interest of a certain sum of money for two years are ₹8400 and ₹8652, then let us write by calculating the sum of money and the rate of interest.