Simple Interest

1.		A sum of money becomes 7/6 of itself in 3 years at a certain rate of simple interest. The rate of interest per annum is:

45/7 %

50/9 %

51/7 %

47/ 9 %

2.		A sum of money triples itself in 8 years simple interest. Find the rate of interest per annum?

30%

25%

22%

18%

3.		The difference between the simple interest received from two different sources on Rs. 3000 for 3 years is Rs. 27. The difference between their rates of interest is:

0.1%

0.2%

0.3%

0.4%

4.		At what rate percent of simple interest per annum will a sum of money double in 8 years.

12.5%

13.5%

11.5%

14.5%

5.		How much time will it take for an amount of Rs. 450 to yield Rs. 81 as interest at 4.5% per annum of simple interest?

3.5 years

4 years

4.5 years

5 years

6.		A Certain sum of money amounts to Rs.2500 in a span Of 5 years and further to Rs.3000 in a span of 7 years at simple interest. The sum is:

Rs. 1800

Rs. 2000

Rs. 1400

Rs. 1250

7.		A sum of money amounts to Rs. 9800 after 5 years and Rs. 12005 after 8 years at the same rate of simple interest. The rate of interest per annum is:

5%

8%

12%

15%

8.		A person takes a loan of Rs. 200 at 5% simple interest. He returned 50% of principal at the end of one year. In order to clear his dues at the end of 2 years, he would pay :

Rs. 100

Rs. 105

Rs. 115

Rs. 110

9.		A financier claims to be lending money at simple interest, but he includes the interest every six months for calculating the principal. If he is charging an interest of 10%, the effective rate of interest becomes:

10%

10.25%

10.5%

none of these

10.		A sum was put at simple interest at a certain rate for 10 years. Had it been put at 5% higher rate, it would have fetched Rs.600 more. What was the Sum?

Rs.1200

Rs.1300

Rs.1400

Rs.1500