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Home Aptitude Simple Interest Comments

  • Question
  • A certain sum of money amounts to Rs 1008 in 2 years and to Rs 1164 in 3 ½ years. Find the sum and the rate of interest.


  • Options
  • A. 800, 14%
  • B. 800, 13%
  • C. 800, 12%
  • D. 800, 19%

  • Correct Answer
  • 800, 13% 

    Explanation

    S.I. for 1 ½ years = Rs (1164 - 1008) = Rs 156 . 

    S.I. for 2 years = Rs (156 x  2 3  x 2)= Rs 208. 

    Therefore, Principal = Rs (1008 - 208) = Rs 800. 

    Now, P = 800, T= 2 and S.I. = 208.

    Therefore, Rate = (100 x S.I.) / (P x T) = [ (100 x 208)/(800 x 2)]% = 13%

  • Tags: GRE

    Simple Interest problems


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

    • Options
    • A. Rs.2000
    • B. Rs.10000
    • C. Rs.15000
    • D. Rs.20000
    • Discuss
    • 2. In how many years will a sum of Rs.800 at 10% per annum compounded semi annually become Rs.926.10

    • Options
    • A. 1.5
    • B. 2.5
    • C. 3.5
    • D. 4.5
    • Discuss
    • 3. What annual instalment will discharge a debt of Rs 1092 due in 3 years at 12% simple interest?

    • Options
    • A. Rs.325
    • B. Rs.545
    • C. Rs.560
    • D. Rs.550
    • Discuss
    • 4. A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years. The sum is:

    • Options
    • A. 650
    • B. 690
    • C. 698
    • D. 700
    • Discuss
    • 5. At what rate percent per annum will a sum of money double in 8 years.

    • Options
    • A. 12.5%
    • B. 13.5%
    • C. 11.5%
    • D. 14.5%
    • Discuss
    • 6. Simple interest on a certain sum is 16/25 of the sum. Find the rate percent and time, If both are numerically equal.

    • Options
    • A. Rate = 7% and Time = 7 years.
    • B. Rate = 8% and Time = 8 years.
    • C. Rate = 6% and Time = 6 years.
    • D. Rate = 5% and Time = 5 years.
    • Discuss
    • 7. A person borrows Rs. 5000 for 2 years at 4% p.a. simple interest. He immediately lends it to another person at 614 p.a for 2 years. Find his gain in the transaction per year

    • Options
    • A. Rs. 112.50
    • B. Rs.150.25
    • C. Rs.167.50
    • D. Rs.170
    • Discuss
    • 8. Find: S.l. on Rs 6250 at 14% per annum for 146 days.

    • Options
    • A. Rs.350
    • B. Rs.450
    • C. Rs.550
    • D. Rs.650
    • Discuss
    • 9. A sum of Rs.1550 was lent partly at 8% p.a. simple interest. The total interest received after 3 years was Rs.300. The ratio of the money lent at 5% to that lent at 8% is :

    • Options
    • A. 5:8
    • B. 6:7
    • C. 16:15
    • D. 17:18
    • Discuss
    • 10. 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 ?

    • Options
    • A. 4 years
    • B. 2.5 years
    • C. 3.5 years
    • D. 2 years
    • Discuss


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