logo

CuriousTab

CuriousTab

Discussion


Home Aptitude Compound Interest See What Others Are Saying!
  • Question
  • A sum amounts to Rs. 3149.29 in 3 years at compound interest. The sum is?


  • Options
  • A. Rs. 1500
  • B. Rs. 2000
  • C. Rs. 2500
  • D. Rs. 3000

  • Correct Answer
  • Rs. 2500 

    Explanation

    Let P be the principle and R% per annum be rate
    Then, P(1 +R/100)3 = 3149.28 .....(i)
    and P(1 + R/100)2 = 2916 .....(ii)
    on dividing(i) and (ii) we get
    ? (1 + R/100) = 3149.28/2916
    ? R/100 = 233.28/2916
    ? R = 233.28/2916 x 100 = 8%
    Now, P(1 + 8/100)2 = 2916
    ? P x 27/25 x 27/25 = 2916
    ? P = (2916 x 25 x 25)/(27 x 27)
    = Rs. 2500


  • More questions

    • 1. 
      A and B together can complete a work in 3 days. They started together but after 2 days, B left the work. If the work is completed after 2 more days, B alone could do the work in how many days?

    • Options
    • A. 5
    • B. 6
    • C. 7
    • D. 10
    • Discuss
    • 2. 
      A wheel makes 1000 revolutions in covering a distance of 88 km. the diameter of the wheel is?

    • Options
    • A. 24 meters
    • B. 40 meters
    • C. 28 meters
    • D. 14 meters
    • Discuss
    • 3. 25, 36, 49, 81, 121, 169, 225

    • Options
    • A. 36
    • B. 49
    • C. 121
    • D. 169
    • Discuss
    • 4. 
      (.896 x .752 +.896 x .248) / (.7 x .034 + .7 x.966) =?

    • Options
    • A. 1.28
    • B. 0.976
    • C. 12.8
    • D. 9.76
    • Discuss
    • 5. 
      Einstein goes from Ahmedabad To Lucknow at the speed of 40 km/hr and returned at the speed of 60 km/hr .the average speed of Einstein during the whole journey is

    • Options
    • A. 48 km/hr
    • B. 24 km/hr
    • C. 50 km/hr
    • D. none of these
    • Discuss
    • 6. 
      Today is Monday. After 61 days, it will be

    • Options
    • A. Wednesday
    • B. Saturday
    • C. Tuesday
    • D. Thursday
    • Discuss
    • 7. 9548 + 7314 = 8362 + (?)

    • Options
    • A. 8230
    • B. 8410
    • C. 8500
    • D. 8600
    • E. None of these
    • Discuss
    • 8. 
      The true discount on a certain sum due 1 yr hence at 30% per annum, is ? 240. What is the banker' discount on the same sum for the same time and at the same rate?

    • Options
    • A. ? 400
    • B. ? 212
    • C. ? 312
    • D. ? 445
    • Discuss
    • 9. 
      Calendar of month July is same as that of which month of previous year.

    • Options
    • A. May
    • B. September
    • C. April
    • D. None of these
    • Discuss
    • 10. 
      A coin is successively tossed two times. Find the probability of getting? (1) exactly one head (2)at least one head

    • Options
    • A. 1/2 , 3/4
    • B. 2/3, 1/4
    • C. 1/4, 4/5
    • D. 1/2, 2/3
    • Discuss


    Comments

    There are no comments.

Enter a new Comment