** 9) A man invested Rs. 40,000 in a building society which paid simple interest at a rate of 7 1/4 % per annum to its investors. After 2 years, the rate was increased to 7.6% per annum. Find the amount he had at the end of 7 years.**

(A) Rs. 50,000

(B) Rs. 60,000

(C) Rs. 61,000

(D) Rs. 71,000

** 10) Find the simple interest you will obtain if you deposit Rs. 600 in a bank for 9 months at 4 1/2% per annum.**

(A) 20.25

(B) 21.25

(C) 22.25

(D) 24.25

** 11) How long will it take a principal of Rs. 24000 to amount to Rs. 28,000 at a simple interest rate of 6% per annum?**

(A) 3 years 4 months

(B) 4 years 3 months

(C) 4 years 4 months

(D) 3 years 3 months

** 12) If the simple interest on a sum of money invested at 3 1/2% per annum for 4 years is Rs. 1000. Find the principal?**

(A) 7141.90

(B) 7142.90

(C) 7143.90

(D) 7144.90

** 13) Simple interest on Rs. 400 in 3 years at a rate of 5% per annum is**

(A) Rs. 70

(B) Rs. 80

(C) Rs. 60

(D) Rs. 30

** 14) Find the principal which amounts, at simple interest to Rs. 729 in 4 years at 2% per annum.**

(A) Rs. 665

(B) Rs. 675

(C) Rs. 685

(D) Rs. 696

** 15) The simple interest on a certain sum for nine months at 5% per annum is Rs. 125 less than the simple interest on the same sum for 15 months at 4% per annum. Find the principal**

(A) Rs. 15,000

(B) Rs. 20,000

(C) Rs. 1000

(D) Rs. 10,000

** 16) The simple interest on a certain sum for 8 months at 4 percent simple interest is Rs. 129 less than the simple interest on the same sum for 15 moths at five percent. The sum is**

(A) Rs. 2800

(B) Rs. 2400

(C) Rs. 3200

(D) Rs. 3600