Mathematics (Simple Interest সরল সুদ)

1) Jim invested  ₹1700 and  ₹2300
schemes A and B respectively for 3 yr. If
schemes A and B offer simple interest at
6% per annum and at 9% per annum
respectively, what is the total interest
earned by Jim from both the schemes
together after 3 yr?

2) Calculate the difference between the compound interest and the simple interest on a
sum of ₹5,000 at the rate of 8% for 3 years. (to nearest ₹)

3) The simple interest on a certain sum at 14% per annum for years is ₹3731. What will the amount of
the same sum for years at half the earlier rate?

4) A sum becomes 14 times of itself in 15 years at the rate of simple interest per annum. In how many years
will the sum becomes 92 times of itself?

5) A certain amount of money earns  ₹540
as simple interest in 3 yr. If it earns a
compound interest of  ₹376.20 at the
same rate of interest in 2 yr, then find
the amount

6) The simple interest on a sum of money
will be  ₹200 after 5 yr. In the next 5 yr,
principal is tripled. What will be the
total interest at the end of the 10th yr?

7) Mr. Pawan invests an amount of  ₹ 24200
at the rate of 4% per annum for 6 yr to
obtain a simple interest, later he invests
the principal amount as well as the
amount obtained as simple interest for
another 4 yr at the same rate of interest.
What amount of simple interest will be
obtained at the end of the last 4 yr?

8) What is the time if the principal is ₹10000, simple interest is ₹2000 and rate is 2%?

9) What is the simple interest if the principal is ₹10000, rate is 3% and time is 5 years?

10) Simple interest for three years for a certain sum at the rate of 15% is ₹ 9000. If the rate of interest
becomes 30%, then what will be the simple interest for two years?