Quantitative Aptitude ยท Commerce Accountancy
Interest and Annuities
621 Questions
Interest and annuities represent a critical quantitative aptitude section focusing on the mathematical calculation of simple interest, compound interest, and future values of investments. Questions challenge candidates to determine maturity values, compute recurring deposit returns, and calculate prevailing interest rates. Mastery of this topic is essential for scoring high in banking and SSC examinations.
Simple and compound interestFuture value of annuitiesRecurring deposit calculationsInterest rate determinationPresent value formulas
Interest and Annuities Questions
What is the formula for calculating the future value of an annuity?
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FV = PMT * [(1 + r)^n - 1] / r
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FV = PMT * [(1 - r)^n - 1] / r
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FV = PMT * r^n
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FV = PMT / [(1 + r)^n - 1] / r
A
Correct answer
Explanation
The formula for calculating the future value (FV) of an annuity is FV = PMT * [(1 + r)^n - 1] / r, where PMT is the periodic payment, r is the interest rate, and n is the number of compounding periods.
What is the formula for calculating the present value of an annuity?
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PV = PMT * [1 - (1 + r)^-n] / r
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PV = PMT * [1 - (1 - r)^-n] / r
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PV = PMT * r^n
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PV = PMT / [1 - (1 + r)^-n] / r
A
Correct answer
Explanation
The formula for calculating the present value (PV) of an annuity is PV = PMT * [1 - (1 + r)^-n] / r, where PMT is the periodic payment, r is the interest rate, and n is the number of compounding periods.
What is the formula for calculating the internal rate of return (IRR) of an investment?
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IRR = (FV - PV) / PV
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IRR = (FV + PV) / PV
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IRR = (FV - PV) / FV
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IRR = (FV + PV) / FV
A
Correct answer
Explanation
The formula for calculating the internal rate of return (IRR) of an investment is IRR = (FV - PV) / PV, where FV is the future value, PV is the present value, and n is the number of compounding periods.
What is the interest rate on federal student loans?
A
Correct answer
Explanation
The interest rate on federal student loans is 4.99%.
What is the interest rate charged on outstanding income tax dues?
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1% per month
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2% per month
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3% per month
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4% per month
A
Correct answer
Explanation
Interest at the rate of 1% per month is charged on outstanding income tax dues.
What is the interest rate charged on outstanding GST dues?
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1% per month
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2% per month
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3% per month
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4% per month
A
Correct answer
Explanation
Interest at the rate of 1% per month is charged on outstanding GST dues.
A sum of money doubles itself in 10 years at a certain rate of simple interest. What is the rate of interest per annum?
B
Correct answer
Explanation
Let the sum of money be P and the rate of interest be r. According to the question, P * (1 + r * 10) = 2P. Dividing both sides by P, we get 1 + r * 10 = 2. Subtracting 1 from both sides, we get r * 10 = 1. Therefore, r = 1 / 10 = 0.1 = 10%.
A sum of money doubles itself in 10 years at a certain rate of simple interest. What is the rate of interest per annum?
B
Correct answer
Explanation
Let the sum of money be P and the rate of interest be r. According to the question, P * (1 + r * 10) = 2P. Dividing both sides by P, we get 1 + r * 10 = 2. Subtracting 1 from both sides, we get r * 10 = 1. Therefore, r = 1 / 10 = 0.1 = 10%.
What is the interest rate on federal student loans?
A
Correct answer
Explanation
The interest rate on federal student loans is 4.99% for undergraduate students and 6.99% for graduate students.
What is the typical repayment period for a state loan?
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5 years
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10 years
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15 years
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20 years
B
Correct answer
Explanation
The typical repayment period for a state loan is 10 years.
A sum of money becomes (\frac{13}{12}) of itself in 2 years at a certain rate of simple interest. What is the rate of interest per annum?
D
Correct answer
Explanation
Simple Interest = (Principal * Rate * Time) / 100. Let the principal be (P) and the rate of interest be (R\%). In 2 years, the amount becomes (\frac{13}{12}P). Therefore, (\frac{13}{12}P = P + (P * R * 2) / 100). Simplifying the equation, we get (R = 12\%.
A sum of money becomes (\frac{13}{12}) of itself in 2 years at a certain rate of simple interest. What is the rate of interest per annum?
D
Correct answer
Explanation
Simple Interest = (Principal * Rate * Time) / 100. Let the principal be (P) and the rate of interest be (R\%). In 2 years, the amount becomes (\frac{13}{12}P). Therefore, (\frac{13}{12}P = P + (P * R * 2) / 100). Simplifying the equation, we get (R = 12\%.
What is the interest rate on federal student loans?
Correct answer
Explanation
The interest rate on federal student loans is 3.73%.
What is the interest rate applicable on delayed GST refunds?
A
Correct answer
Explanation
The interest rate applicable on delayed GST refunds is 6% per annum.
What is the current mortgage rate for a 30-year fixed loan?
B
Correct answer
Explanation
The current mortgage rate for a 30-year fixed loan is around 3%.