Quantitative Aptitude

Simple and Compound Interest

3,394 Questions

All Simple interest and its inverse forms 768 Compound interest with annual compounding 742 Simple-interest growth and split sums 626 Difference between compound and simple interest 479 Half-yearly and quarterly compounding 252 Changing rates and fractional years 201 Installments (CI based) 190 Ratio of principal to interest 118 Population growth and depreciation 16

Simple and Compound Interest Questions

Multiple choice

In how much time, will a sum of money become double of itself at 15% per annum simple interest?

$6\frac{1}{4} years$
$6\frac{1}{2} years$
$6\frac{1}{3} years$
$6\frac{2}{3} years$

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Multiple choice

Choose the correct answer from the alternatives given. The difference between simple and compound interest at the rate of 10% per annum on a sum of 1,000 after 4 years is

$Rs. 64.10$
$Rs. 31$
$Rs. 32.10$
$Rs. 40.40$

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Multiple choice

What sum of money will produce Rs. $28,600$ as an interest in $3$ years and $3$ months at $2.5\%$ p.a. simple interest?

Rs. $3,52,000$
Rs. $3,22,000$
Rs. $3,42,000$
Rs. $3,32,000$

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Multiple choice

If a, b, c are three sums of money such that b is the simple interest on a, c is the simple interest on b for the same time and at the same rate of interest, then we have

$a^2 = bc$
$b^2 = ac$
$C^2 = ab$
$abc = 1$

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Multiple choice

Sunil lent a sum of money at 4 percent simple interest. In 8 years the interest amounted to Rs.3,400 less than the sum lent. The sum lent was -

Rs.7,000
Rs.5,000
Rs.5,700
Rs.6,000

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Multiple choice

An amount of money fetches a simple Interest of Rs.4,320 at the rate of 4 percent per annum at the end of 6 years. What is the principal amount?

$Rs.24,000$
$Rs.12,000$
$Rs.18,000$
$Rs.20,000$

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Multiple choice

The simple interest on a certain sum for 14 months at 6 percent per annum is Rs.25 more than the simple interest on the same sum for 8 months at 8 percent. The sum borrowed is -

$Rs.1,500$
$Rs.1,700$
$Rs.2,000$
$Rs.2,500.$

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Multiple choice

$\dfrac{1}{4}$th of a sum is invested at 3% simple interest, $\dfrac{1}{3}$rd at 4% and the remainder at 5%. If the total yearly interest is Rs.150, the sum is-

Rs. 4,000
Rs. 3,600
Rs. 3,000
Rs. 5,000

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Multiple choice

Meenakshi gets 16$\dfrac{2}{3}$ % simple interest on her fixed deposits. Her interest will be equal to the deposit in ______ years -

8
8.5
6
6.25

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Multiple choice

If an amount doubles itself in $5$ years at simple interest it will become three times in -

$10$ years
$12$ years
$8$ years
None of these

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Multiple choice

Out of Rs. 70,000. I invest Rs. 30,000 at 4% and Rs. 20,000 at 3%, simple Interest. At what rate of interest must I invest the balance so as to get a return of 5% on the whole amount per annum?

5%
7%
8%
8.5%

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Multiple choice

Simple interest on a certain sum at the rate of $4.5\%$ per annum for $4$ years and $6$ years differs by Rs.$216$. The sum is -

$Rs.2,400$
$Rs.2,100$
$Rs.3,900$
$Rs.1,800$

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Multiple choice

Atul lent a sum of money at simple interest The sum trebled in 16 years. The interest rate was -

10 percent
8 percent
16 percent
12.5 percent

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Multiple choice

Nishtha borrowed Rs.1,000 at 10 percent per annum simple Interest from a co-operative society on January 1, 1997. She cleared the loan by paying Rs.1,020. The amount was paid on -

March 15, 1997
March 13, 1997
March 16, 1997
March 14, 1997

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Multiple choice

Suresh wishes to earn a monthly interest of Rs.600. The interest rate is 12 percent per annum but it is paid every month. He must invest -

Rs.80,000
Rs.60,000
Rs.90,000
Rs.1,20,000.

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