Compound interest formula Practice Question and Answer

Q: Rs 1250 becomes Rs 1352 after a certain period at the rate of 4% per annum. Find out the period of investment, if interest add in principal after every year? 1296 0

  • 1
    4 years
    Correct
    Wrong
  • 2
    2 years
    Correct
    Wrong
  • 3
    3 years
    Correct
    Wrong
  • 4
    5 years
    Correct
    Wrong
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Answer : 2. "2 years"
Explanation :

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Q: What will be Compound interest on Rs 2000 at 20% per annum rate for 1 year and 6 months, if interest is compounded on half-yearly basis. 1225 0

  • 1
    Rs 665
    Correct
    Wrong
  • 2
    Rs 656
    Correct
    Wrong
  • 3
    Rs 662
    Correct
    Wrong
  • 4
    Rs 663
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 3. "Rs 662"
Explanation :

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Q:

Interest earned by Ramesh on Rs.10,000 for 2 years at R% p.a. simple interest is how much more/less than interest earned by him on Rs. 8000 for 2 years at (R+10)% p.a. compounding annually. If Rs. 2000 is invested at 2R% p.a. simple interest for a year, then it would fetch an interest of Rs.400.

1115 0

  • 1
    Rs.1220
    Correct
    Wrong
  • 2
    Rs.1000
    Correct
    Wrong
  • 3
    Rs. 1520
    Correct
    Wrong
  • 4
    Rs. 930
    Correct
    Wrong
  • 5
    Rs.1140
    Correct
    Wrong
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Answer : 3. "Rs. 1520"

Q:

Sanjana invested Rs. 15000 in SI at the rate of 2x% per annum for two years and the same amount is invested in CI at the same rate of interest if she received Rs.150 more interest than S.I, then find the rate of interest per annum?

658 0

  • 1
    10 %
    Correct
    Wrong
  • 2
    14 %
    Correct
    Wrong
  • 3
    12 %
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 1. "10 %"

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