INDIAN RAILWAY QUESTION BANK GROUP D To GROUP C EXAM MATHS  Simple Interest 

Simple Interest 

1. What is sum of money that becomes Rs. 2250/ in 2 years at the rate of 121/2 percent per annum? 2. Find the rate of interest if the sum of Rs. 2750/ becomes Rs. 3570/ in two years six months?
3. Principal amount is Rs. 1020/, rate of interest is 8% per annum, What shall be the amount in 3 years 4 months? 4. A certain sum of money amounts to Rs. 312/ at 4% simple interest per annum and Rs. 324/ at 8% simple interest per annum. Find the Principal and period of time? 5. If a certain sum amounts to Rs. 515 in three years and to Rs. 530 in 6 years, find sum and rate of interest. 6. In how many years the interest on Rs. 1200/ at 5% is equal to interest on Rs. 800/ at 7.5% in 2.5 years? 7. In what time will the interest on Rs. 3600 at the rate of 10% be equal to the interest on Rs. 1800 at the rate of 121/2 % in 4 years? 8. In how many years certain sum amounts to (i) double (ii) three times to principal at the rate of 162/3%? 9. At what rate will the interest on Rs. 480 in 15 months equals the interest on Rs. 800 at 5% rate of interest in 9 months? 10. A man borrowed some money at 15% simple interest and cleared the debt at the end of 2 years 8 months, by paying Rs. 9240. Find the sum borrowed. 11. A sum of Rs. 450 amounts to Rs. 495 in 2 years. In what time will the sum of Rs. 820 amounts to Rs. 943 at the same rate? 12. In what time will Rs. 1250/ amount to Rs. 1400/ at 6% per annum? 13. If a certain sum doubles itself in 16 years at simple interest, in how many years will it triple itself? 14. Find the simple interest on a sum of Rs. 1000/ for 4 years at the rate of 3% per annum? 15. Find the simple interest on a sum of Rs. 250/ at 2% per annum for 4 years? 16. Find the simple interest on a sum of Rs. 4000/ for 6 months at the rate of 4% per annum? 17. Find the simple interest on a sum of Rs. 800/ for 4 years at the rate of 2 ½ % per annum? 18. Find the simple interest on a sum of Rs. 10/ for 4 months at the rate of 3 ps per rupee per month?
19. Find the simple interest on a sum of Rs. 125/ at the rate of 9% per annum from 25th February to 9th May, 1975? 20. Find the simple interest on a sum of Rs. 700/ at the rate of 2% per annum from 30th September, 1975 to 31st March, 1976? 21. Mahavir helped his friend by giving him Rs. 600/. The rate of interest was 5% per annum. How much money will he return to Mahavir after 4 years? 22. The interest on Rs. 325/ for 3 years is Rs. 39/ Find the rate of interest per annum? 23. The simple interest on Rs. 1200/ for 5 years is RS. 360/. Find the rate of interest per annum? 24. A bicycle costs Rs. 2500/ if purchased in cash. It can also be purchased by paying Rs. 250/ per month for a year. Determine the rate of interest? 25. If A gets three times the money invested at the end of 16 years, what is the rate of interest? 26. A sum of Rs. 400/ becomes RS. 480/ in 4 years. What will it amount to if the rate of interest is increased by 2%? 27. If Rs. 500/ becomes Rs. 540/ in 2 years, what is the rate of interest per cent per annum? 28. A sum of money lent out at simple interest amounts to Rs. 2520/ in 2 years and to Rs. 2700/ in 5 years. Find the rate of interest? 29. In what time the simple interest on Rs. 300/ at the rate of 5% p.a.is Rs. 30/? 30. In what time will Rs. 1100/ amount to Rs. 1331/ at 5 ¼ % per annum? 31. In what time will the simple interest on RS. 800/ at 5% per annum be the same as the simple interest on RS. 500/ for 8 years at 4% per annum? 32. What sum of money will produce Rs. 286/ interest in 6 ½ years at 5% per annum? 33. A sum of money lent out at simple interest amounts to Rs. 440/ in 2 years and to Rs. 500/ in 5 years. Find the sum?
34. A man borrowed Rs. 1000/ at 6% per annum. At the end of 3 ½ years, he cleared his account by paying Rs. 360/ and a horse. What is the cost of the horse? 35. If the principal amount is Rs. 45/ and the rate of interest is 5% per annum, What shall be the interest in three years? 36. If the Principal amount is Rs. 1000/ and rate of interest is 6% per annum, what shall be the interest in 3 years six months? 37. On what Principal amount the simple interest payable shall be Rs. 50/ in 2 years at the rate of 5% per annum? 38. On what Principal amount the simple interest payable shall be Rs. 31.50 ps in one year 3 months at the rate of 51/4 % per annum? 39. Find the Principal amount if the simple interest paid is Rs. 312.75 ps in 2 years 3 months at the rate of 6.25% per annum? 40. What is the rate of interest per annum, if the interest payable is Rs. 3/ in two years on a sum of Rs. 60/? 41. What is the rate of interest per annum, if the interest payable is Rs. 42/ in two years 4 months on a sum of Rs. 180/? 42. What is the rate of interest per annum, if the interest payable is Rs. 90/ in two years 6 months on a sum of Rs. 1080/? 43. In how many years a sum of Rs. 6500/ yields a simple interest of Rs. 455/ if the rate of interest is 21/3 %? 44. In how many years a sum of Rs. 1875/ yields a simple interest of Rs. 675/ if the rate of interest is 12%? 45. In how many years a sum of Rs. 6500/ becomes Rs. 7670/ at the rate of 6% per annum?
