Question 1: Find the amount and the compound interest on Rs. for years at per annum, compounded annually.

Answer:

Principal for the first year Rs.

Interest for the first year Rs.

Principal for the second year Rs.

Amount at the end of second year Rs.

Interest for the second year Rs.

Compound interest Rs.

Question 2: Find the amount and the compound interest on Rs. for years at per annum, compounded annually.

Answer:

Principal for the first year Rs.

Interest for the first year Rs.

Principal for second year Rs.

Interest for second year Rs.

Principal at the end of second year Rs.

Total compound interest Rs.

Question 3: Find the amount and the compound interest on Rs. for years, compounded annually, the rate of interest being during the first year and during second year.

Answer:

Principal for the first year Rs.

Interest earned by end of first year Rs.

Principal for the second year Rs.

Interest earned for second year Rs.

Total interest Rs.

Amount at the end of the second year Rs.

Question 4: Find the amount and the compound interest on Rs. for years at per annum, compounded annually.

Answer:

Principal for the first year Rs.

Interest for first year Rs.

Principal for 2^{nd} year Rs.

Interest for 2^{nd} year Rs.

Principal for 3^{rd} year Rs.

Interest for 3^{rd} year Rs.

Amount at the end of the 3^{rd} year Rs.

Question 5: Find the amount and the compound interest on Rs. for years at per annum, compounded annually.

Answer:

Principal for the 1^{st} year Rs.

Interest for 1^{st} year Rs.

Principal for 2^{nd} year Rs.

Interest for 2^{nd} year Rs.

Principal for 3^{rd} year Rs.

Interest for 3^{rd} year Rs.

Amount at the end of the 3^{rd} year Rs.

Total compounded interest

Question 6: ‘A’ took a loan of Rs. from corporate bank at per annum, compounded annually. How much amount he will have to pay at the end of years?

Answer:

Principal for the 1^{st} year Rs.

Interest for the 1^{st} year Rs.

Principal for 2^{nd} year Rs.

Interest on 2^{nd} the year Rs.

Principal for the 3^{rd} year Rs.

Interest for the 3^{rd} year Rs.

Amount at the end of 3^{rd} year Rs.

Total compounded interest Rs.

Question 7: ‘A’ deposited Rs. in a bank at per annum, compounded annually. How much amount will he get after years?

Answer:

Principal for 1st year Rs.

Interest for 1^{st} year Rs.

Principal for 2nd year Rs.

Interest for 2^{nd} year Rs.

Principal for the 3^{rd} year Rs.

Interest for the 3^{rd} year Rs.

Amount at the end of the 3^{rd} year Rs.

Question 8: A person lent out Rs. on simple interest and the same sum on compound interest for years at per annum. Find the ratio of the amounts received by him as interest after years.

Answer:

__Simple Interest__

Principal for the 1^{st} year Rs.

Interest for the 1^{st} year Rs.

Interest for 2^{nd} year Rs.

Total interest Rs.

__Compound Interest__

Principal for 1^{st} year Rs.

Interest at the end of the 1^{st} year Rs.

Principal for 2^{nd} year Rs.

Interest at the end of the 2^{nd} year Rs.

Total compound interest Rs.

Ratio of the interest

Note: We could also solve by using the formula

Answer 1: Rs.

Answer 2: Rs.

Answer 3: Rs.

Answer 4: Rs.

Answer 5: Rs.

Answer 6: Rs.

Answer 7: Rs.

Nice work