Simple interest questions and answers for competitive exams

Simple interest questions and answers for SSC bank exams:

17. At what rate percent of simple interest will a sum of money double itself in 12years?

(a)

(b)

(c)

(d)

18. A t what rate percent per annum will the simple interest on a sum of money be  of the amount in 10 years?

(a) 4 %

(b)

(c) 6%

(d)

19. In how much time would the simple interest on a certain sum be 0.125 times the principle at 10 % per annum?

(a)   years 

(b)  years

(c)   years

(d)  years

20. A sum of money becomes  of itself in 3years at a certain rate of simple interest. The rate per annum is 

(a)  

(b)

(c) 18 %

(d) 25 %

21. Simple interest on a certain amount is  of the principal. If the number representing the rate of interest in percent and time in years be equal, then time, for which the principal is lent out, is :

(a)  Years 

(b)  Years

(c) 7 Years

(d)  Years

you should also read: Chain Rule Questions Answers 

22. A lend Rs. 2500 to B and a certain sum to C at the same time at 7 % p.a simple interest. If after 4 years, an altogether receives Rs. 1120 as interest from B and C, then the sum lent to C is:

(a) Rs. 700

(b) Rs. 1500

(c) Rs. 4000

(d) Rs. 6500

23. A lent Rs. 5000 to B for 2 years and Rs. 3000 to C for 4 years on simple interest at the same rate of interest and received Rs. 2200 in all from both of them as interest. The rate of interest per annum is

(a) 5%

(b) 7 %

(c)

(d) 10 %

24. A sum of Rs. 725 is lent in the beginning of a year at a certain rate of interest. After 8 month, a sum of Rs. 362.50 more is lent but at the rate twice the former. At the end of the year, Rs. 33.50 is earned as interest from both the loans. What was the original rate of interest?

(a) 3.6 %

(b) 4.5 %

(c) 5 %

(d) 6 %

(e) None of these

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