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Aptitude Simple Interest Set 1

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1. Find the principle on a certain sum of money at 5% per annum for 2 2/5 years if the amount being Rs.1120?




2. What sum of money will produce Rs.70 as simple interest in 4 years at 3 1/2 percent?




3. At what rate percent on simple interest will Rs.750 amount to Rs.900 in 5 years?




4. What is the rate percent when the simple interest on Rs.800 amount to Rs.160 in 4 Years?




5. Find the simple interest on Rs.500 for 9 months at 6 paisa per month?




6. A certain sum amounts to Rs.1725 in 3 years and Rs.1875 in 5 years. Find the rate % per annum?




7. At what rate percent on simple interest will a sum of money double itself in 30 years?




8. A certain sum of money at simple interest amounted Rs.840 in 10 years at 3% per annum, find the sum?




9. In what time a sum of money double itself at 3% per annum simple interest?




10. The simple interest on a sum of money will be Rs.600 after 10 years. If the principal is trebled after 5 years what will be the total interest at the end of the tenth year?




11. Sonika deposited Rs.8000 which amounted to Rs.9200 after 3 years at simple interest. Had the interest been 2% more. She would get how much?




12. If x is the interest on y and y is the interest on z, the rate and time is the same on both the cases. What is the relation between x, y and z?




13. Rs.2500 is divided into two parts such that if one part be put out at 5% simple interest and the other at 6%, the yearly annual income may be Rs.140. How much was lent at 5%?




14. If Re.1 amounts to Rs.9 over a period of 20 years. What is the rate of simple interest? A.D.




15. 4000 was divided into two parts such a way that when first part was invested at 3% and the second at 5%, the whole annual interest from both the investments is Rs.144, how much was put at 3%?




16. If rupee one produces rupees nine over a period of 40 years, find the rate of simple interest?




17. A certain sum of money doubles itself in 10 years in how much many years will it trible itself at the same rate?




18. Rs.1500 is divided into two parts such that if one part is invested at 6% and the other at 5% the whole annual interest from both the sum is Rs.85. How much was lent at 5%?




19. The simple interest on a sum of money is 4/9 of the principal and the number of years is equal to the rate percent. Find the rate and the time?




20. In how many years will a sum of money doubles itself at 5% per annum on simple interest?




21. A sum of money becomes triple itself in 5 years at simple interest. How many years will it become six times at the same rate?




22. A sum of money becomes double itself in 8 years at simple interest. How many times will it become 10 years at the same rate?




23. A part of certain sum of money is invested at 9% per annum and the rest at 12% per annum, if the interest earned in each case for the same period is equal, then ratio of the sums invested is?




24. A part of certain sum of money is invested at 9% per annum and the rest at 12% per annum, if the interest earned in each case for the same period is equal, then ratio of the sums invested is?




25. The equal amounts of money are deposited in two banks each at 15% per annum for 3.5 years and 5 years respectively. If the difference between their interests is Rs.144, find the each sum?




26. A sum of Rs. 2665 is lent into two parts so that the interest on the first part for 8 years at 3% per annum may be equal to the interest on the second part for 3 years at 5% per annum. Find the second sum?




27. If A lends Rs.3500 to B at 10% per annum and B lends the same sum to C at 11.5% per annum then the gain of B in a period of 3 years is?




28. A person lent a certain sum of money at 4% per annum at simple interest and in 8 years the interest amounted to Rs.340 less than the sum lent. What was the sum lent?




29. If Rs.450 amount to Rs.540 in 4 years, what will it amount to in 6 years at the same rate % per annum?




30. . Rs.800 amounts to Rs.920 in 3 years at simple interest. If the interest is increased by 3%, it would amount to how much?




31. What amount does Kiran get if he invests Rs. 18000 at 15% p.a. simple interest for four years?




32. How much interest can a person get on Rs. 8200 at 17.5% p.a. simple interest for a period of two years and six months?




33. In how many years does a sum of Rs. 5000 yield a simple interest of Rs. 16500 at 15% p.a.?




34. A certain sum becomes Rs. 20720 in four years and 24080 in six years at simple interest. Find sum and rate of interest?




35. A sum of money triples itself in twelve years at simple interest. Find the rate of interest?




36. A certain sum is invested at simple interest at 18% p.a. for two years instead of investing at 12% p.a. for the same time period. Therefore the interest received is more by Rs. 840. Find the sum?




37. An amount of Rs. 3000 becomes Rs. 3600 in four years at simple interest. If the rate of interest was 1% more, then what was be the total amount?




38. A certain sum becomes four times itself at simple interest in eight years. In how many years does it become ten times itself?




39. At what rate of interest is an amount doubled in two years, when compounded annually?




40. Vijay lent out an amount Rs. 10000 into two parts, one at 8% p.a. and the remaining at 10% p.a. both on simple interest. At the end of the year he received Rs. 890 as total interest. What was the amount he lent out at 8% pa.a?




41. Anil invested a sum of money at a certain rate of simple interest for a period of five years. Had he invested the sum for a period of eight years for the same rate, the total intrest earned by him would have been sixty percent more than the earlier interest amount. Find the rate of interest p.a.




42. Manoj borrowed Rs.3450 from Anwar at 6% p.a. simple interest for three years. He then added some more money to the borrowed sum and lent it to Ramu for the same time at 9% p.a. simple interest. If Manoj gains Rs.824.85 by way of interest on the borrowed sum as well as his own amount from the whole transaction, then what is the sum lent by him to Ramu?




43. A certain sum of money is invested for one year at a certain rate of simple interest. If the rate of interest is 3% higher, then the invest earned will be 25% more than the interest earned earlier. What is the earlier rate of interest?




44. The simple interest accrued on an amount Rs.10,000 at the end of two years is same as the compound interest on Rs.8,000 at the end of two years. The rate of interest is same in both the cases. What is the rate of interest?




45. Rs.4500 amounts to Rs.5544 in two years at compound interest, compounded annually. If the rate of the interest for the first year is 12%, find the rate of interest for the second year?




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




47. . A sum of Rs. 125000 amounts to Rs. 15500 in 4 years at the rate of simple interest. What is the rate of interest?




48. Reena took a loan of Rs. 1200 with simple interest for as many years as the rate of interest. If she paid Rs. 432 as interest at the end of the loan period, what was the rate of interest?




49. A man took loan from a bank at the rate of 12% p.a. S.I. After 3 years he had to pay Rs. 5400 interest only for the period. The principal amount borrowed by him was?




50. What is the present worth of Rs. 132 due in 2 years at 5% simple interest per annum?




51. A sum fetched a total simple interest of Rs. 4016.25 at the rate of 9% p.a. in 5 years. What is the sum?




52. Rs. 800 becomes Rs. 956 in 3 years at a rate of S.I. If the rate of interest is increased by 4%, what amount will Rs. 800 become in 3 years?




53. A certain amount earns simple interest of Rs. 1750 after 7 years. Had the interest been 2% more, how much more interest would it have earned?




54. What will be the ratio of simple interest earned by certain amount at the same rate of interest for 6 years and that for 9 years?




55. Nitin borrowed some money at the rate of 6% p.a. for the first three years, 9% p.a. for the next five years and 13% p.a. for the period beyond eight years. If the total interest paid by him at the end of eleven years is Rs. 8160, how much money did he borrow?




56. An automobile financier claims to be lending money at S.I., 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?




57. A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years. The sum is?




58. A sum of money lent out at S.I. amounts to Rs. 720 after 2 years and to Rs. 1020 after a further period of 5 years. The sum is?




59. 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?




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