allerySI for 2 years at 8% is Rs 800. Compound interest on the same sum?
- Rs 800
- Rs 832
- Rs 820
- Rs 864
Show answer and solution
Correct answer: B. Rs 832
Sum is 5,000, and 5000 x 0.1664 = 832.
RRB NTPC Simple & Compound Interest — practice questions — page 2
Explore 56 free Simple & Compound Interest questions in RRB NTPC Quantitative Aptitude. Open each question or exercise to read its content, reference answers and available explanation.
Practise Simple & Compound Interest with Quill →Simple & Compound Interest questions and exercises with answers
Showing questions 31–56 of 56.
SI for 2 years at 8% is Rs 800. Compound interest on the same sum?Read the answer and worked solution →Using the rule of 72, money doubles in about how many years at 12% interest?Read the answer and worked solution →By the rule of 72, an investment doubles at 9% interest in roughly?Read the answer and worked solution →According to the rule of 72, how long to double at 18% interest?Read the answer and worked solution →Under simple interest, how does the principal change from year to year?Read the answer and worked solution →Compared with annual compounding at the same stated rate, semiannual compounding gives?Read the answer and worked solution →What does compounding frequency measure?Read the answer and worked solution →Interest is compounded monthly on an annual rate. The compounding frequency is?Read the answer and worked solution →If 1,000 earns 5% interest per year with compounding, what is it worth after 2 years?Read the answer and worked solution →Simple interest is charged on which amount?Read the answer and worked solution →Interest is best described as the extra money paid for?Read the answer and worked solution →A rate of 9% per annum means how much interest on each Rs 100 in a year?Read the answer and worked solution →Rs 5,000 earns 10% in year one and 20% in year two as compound interest. Final amount?Read the answer and worked solution →At 20% annually on Rs 1,000 for 2 years, how much more is CI than SI?Read the answer and worked solution →A loan is cleared by two equal yearly instalments of Rs 1,210 at 10% CI. Loan amount?Read the answer and worked solution →Simple interest is one quarter of the sum, and the rate equals the years. Rate?Read the answer and worked solution →At simple interest, a sum equals its interest after 5 years. Rate?Read the answer and worked solution →CI on a sum at 10% for 2 years is Rs 2,310. What is the sum?Read the answer and worked solution →What principal grows to Rs 9,261 in 3 years at 5% compounded annually?Read the answer and worked solution →In which kind of interest is earlier interest not added to the principal for later periods?Read the answer and worked solution →By the Rule of 72, about how many years will money double at 8% compound interest?Read the answer and worked solution →At 6% compound interest, roughly how long will a deposit take to double by the Rule of 72?Read the answer and worked solution →For Rs 5,000 at 10% for 2 years, how much more is compound interest than simple interest?Read the answer and worked solution →A sum of Rs 4,000 earns Rs 800 simple interest in 4 years. What is the yearly rate?Read the answer and worked solution →Quarterly compounding of an annual rate means interest is added how many times a year?Read the answer and worked solution →With monthly capitalisation of an annual rate, what is the compounding frequency per year?Read the answer and worked solution →
Worked practice questions
Using the rule of 72, money doubles in about how many years at 12% interest?
- 8 years
- 12 years
- 5 years
- 6 years
Show answer and solution
Correct answer: D. 6 years
72 divided by 12 gives 6.
By the rule of 72, an investment doubles at 9% interest in roughly?
- 9 years
- 8 years
- 6 years
- 7 years
Show answer and solution
Correct answer: B. 8 years
72 / 9 = 8 years.
How to practise
- Choose a Simple & Compound Interest question and try to work out your answer.
- Open the question to check the correct answer and read its worked solution.
- Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.
Put it into practice
Continue with Simple & Compound Interest practice for RRB NTPC. Read explanations as you go. No signup form needed to start.
Practise Simple & Compound Interest →