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  • Question

  • A certain sum is invested for 2 years in scheme M at 20% p.a. compound interest (compounded annually), Same sum is also invested for the same period in scheme N at k% p.a. simple interest. The interest earned from scheme M is twice of that earned from scheme N. What is the value of k?


  • Options
  • A. 7
  • B. 11
  • C. 9
  • D. 13

  • Correct Answer
  • 11 

    Explanation

    Interest earned in scheme M =   

    P 1   +   20 100 2     -   1     =   11 P 25

    Interest earned in scheme N =  

    P   x   k   x   2 100   =   P k 50

     

    Now, from the given data,

     

    11 P 25   =   2   x   P k 50

    k = 11

    • Compound Interest problems

    Search Results

    • 1. Compound interest on a certain sum of money at 20% per annum for 2 years is Rs.5995. What is the SI on the same money at 8% per annum for 6 years ?

    • Options
    • A. Rs. 5989
    • B. Rs. 6540
    • C. Rs. 7844
    • D. Rs. 6789
      • Discuss
    • 2. A man invests Rs.5000 for 3 years at 5% p.a. compound interest reckoned yearly. Income tax at the rate of 20% on the interest earned is deducted at the end of each year. Find the amount at the end of the third year

    • Options
    • A. Rs.5624.32
    • B. Rs.5423
    • C. Rs.5634
    • D. Rs.5976
      • Discuss
    • 3. The principal that amounts to Rs.4913 in 3 years at 413 % per annum compound interest compounded annually is

    • Options
    • A. Rs.3096
    • B. Rs.4076
    • C. Rs.4085
    • D. Rs.4096
      • Discuss
    • 4. A certain sum is to be divided between A and B so that after 5 years the amount received by A is equal to the amount received by B after 7 years. The rate of interest is 10%, interest compounded annually. Find the ratio of amounts invested by them.

    • Options
    • A. 121:100
    • B. 125:100
    • C. 100:121
    • D. 100:125
      • Discuss
    • 5. Divide Rs. 1301 between A and B, so that the amount of A after 7 years is equal to the amount of B after 9 years, the interest being compounded at 4% per annum.

    • Options
    • A. Rs.625
    • B. Rs.626
    • C. Rs.286
    • D. Rs.627
      • Discuss
    • 6. The present worth of Rs.169 due in 2 years at 4% per annum compound interest is

    • Options
    • A. Rs.156.25
    • B. Rs.150
    • C. Rs.140
    • D. Rs125.25
      • Discuss
    • 7. Simple interest on a certain sum of money for 3 years at 8% per annum is half the compound interest on Rs. 16000 for 2 years at 10% per annum. The sum placed on simple interest is:

    • Options
    • A. Rs 14000
    • B. Rs 3500
    • C. Rs 7000
    • D. Rs 5600
      • Discuss
    • 8. Find the compound interest on Rs. 6,500 for 4 years if the rate of interest is 10% p.a. for the first 2 years and 20% per annum for the next 2 years?

    • Options
    • A. Rs. 3845
    • B. Rs. 4826
    • C. Rs. 5142
    • D. Rs. 4415
      • Discuss
    • 9. What is the interest rate per annum, if a sum of money invested at compound interest amount to Rs. 2400 in 3 years and in 4 years to Rs. 2,520?

    • Options
    • A. 3.5%
    • B. 4%
    • C. 5%
    • D. 6.5%
      • Discuss
    • 10. A sum is equally invested in two different schemes on CI at the rate of 15% and 20% for two years. If interest gained from the sum invested at 20% is Rs. 528.75 more than the sum invested at 15%, find the total sum?

    • Options
    • A. Rs. 7000
    • B. Rs. 4500
    • C. Rs. 9000
    • D. Rs. 8200
      • Discuss

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