Ravi invested at compound interest amounts to Rs 600 in 2nd year and 642 in 3 years. what rate of interest per annum he recevied ?

Consider the simple interest of the following:

(A) A sum of Rs 1200 at 3% per annum for 3 years.

(B) A sum of Rs 5500 at 7% per annum for 2 years.

(C) A sum of Rs 200 at 4% per annum for 4 years.

(D) A sum of Rs 2000 at 14% per annum for 4 years.

Arrange the above in descending order.

Choose the correct answer from the options given below:

Ravi borrowed Rs. 36000 from Akash at a simple interest of 8% per annum for a period of 4 years. Calculate the amount to be returned by Ravi to Akash after 4 years?

A sum is invested at 10 % per annum with simple interest. What will be the time taken to increase its value by 25% ?

The simple interest of an amount is $\frac{16}{25}$ of the principal. Find the rate % PA, if the time and rate both are numerically equal.

In how many years will a sum of money double itself at 12.5% p.a., at simple interest?

The difference between the amounts of compound interest and simple interest on the same amount invested at the same rate for 2 years in Rs. 32. If the interest rate is 4% per annum, calculate the amount invested.(in Rs.)