Interest - Aptitude MCQ Questions and Solutions with Explanations Page-1 section-2

Important Theory / Shots Trick on Interest
Section 1 Section 2 Section 3

1.
If a sum doubles in 16 years, how much will it be in 8 years ?

A. $$1\frac{1}{2}$$ times

B. $$1\frac{1}{3}$$ times

C. $$1\frac{1}{4}$$ times

D. $$1\frac{3}{4}$$ times

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2.
Consider the following statements
If a sum of money is lent at simple interest, then the
I - money gets doubled in 5 years if the rate of interest is $$16\frac{2}{3}$$ %
II - money gets doubled in 5 years if the rate of interest is 20%.
III - money becomes four times in 10 years if it gets doubled in 5 years.

A. I and III are correct

B. II alone is correct

C. III alone is correct

D. II and III are correct

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3.
In a certain time, the ratio of a certain principal and interest obtained from it are in the ratio 10 : 3 at 10% interest per annum. The number of years for which the money was invested is = ?

A. 1 year

B. 3 year

C. 5 year

D. 7 year

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4.
Jhon invested a sum of money at an annual simple interest rate of 10%. At the end of four years the amount invested plus interest earned was Rs. 770. The amount invested was = ?

A. Rs. 650

B. Rs. 350

C. Rs. 550

D. Rs. 500

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5.
In what time will Rs. 1860 amount to 2641.20 at simple interest 12% per annum ?

A. 3 years

B. $$3\frac{1}{2}$$ years

C. 4 years

D. $$4\frac{1}{2}$$ years

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6.
The simple interest on a sum of money at 8% per annum for 6 years is half the sum. The sum is:

A. Rs. 4800

B. Rs. 6000

C. Rs. 8000

D. Date inadequate

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7.
In how much time would the simple interest on a certain sum be 0.125 times the principal at 10% per annum?

A. $$1\frac{1}{4}$$ years

B. $$1\frac{3}{4}$$ years

C. $$2\frac{1}{4}$$ years

D. $$2\frac{3}{4}$$ years

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8.
The population of a village decreases at the rate of 20% per annum. If its population 2 years ago was 10000, the present population is = ?

A. 4600

B. 6400

C. 7600

D. 6000

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9.
Rs. 12000 is divided into two parts such that simple interest on the first part for 3 years at 12% per annum may be equal to the simple interest on the second part for $$4\frac{1}{2}$$ years at 16% per annum. The ratio of the first part to the second part is = ?

A. 2 : 1

B. 1 : 2

C. 2 : 3

D. 3 : 2

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10.
A person who pays income tax at the rate of 4 paise per rupee, find that fall of interest rate (income tax) from 4% to 3.75% diminishes his net yearly income by Rs. 48. What is his capital ?

A. Rs. 24000

B. Rs. 25000

C. Rs. 20000

D. Rs. 18000

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Principal	Interest
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Interest - Aptitude MCQ Questions and Solutions with Explanations

1. If a sum doubles in 16 years, how much will it be in 8 years ?

Answer & Solution

Answer & Solution

3. In a certain time, the ratio of a certain principal and interest obtained from it are in the ratio 10 : 3 at 10% interest per annum. The number of years for which the money was invested is = ?

Answer & Solution

4. Jhon invested a sum of money at an annual simple interest rate of 10%. At the end of four years the amount invested plus interest earned was Rs. 770. The amount invested was = ?

Answer & Solution

5. In what time will Rs. 1860 amount to 2641.20 at simple interest 12% per annum ?

Answer & Solution

6. The simple interest on a sum of money at 8% per annum for 6 years is half the sum. The sum is:

Answer & Solution

7. In how much time would the simple interest on a certain sum be 0.125 times the principal at 10% per annum?

Answer & Solution

8. The population of a village decreases at the rate of 20% per annum. If its population 2 years ago was 10000, the present population is = ?

Answer & Solution

9. Rs. 12000 is divided into two parts such that simple interest on the first part for 3 years at 12% per annum may be equal to the simple interest on the second part for $$4\frac{1}{2}$$ years at 16% per annum. The ratio of the first part to the second part is = ?

Answer & Solution

10. A person who pays income tax at the rate of 4 paise per rupee, find that fall of interest rate (income tax) from 4% to 3.75% diminishes his net yearly income by Rs. 48. What is his capital ?

Answer & Solution

Read More Section(Interest)

1.
If a sum doubles in 16 years, how much will it be in 8 years ?

3.
In a certain time, the ratio of a certain principal and interest obtained from it are in the ratio 10 : 3 at 10% interest per annum. The number of years for which the money was invested is = ?

4.
Jhon invested a sum of money at an annual simple interest rate of 10%. At the end of four years the amount invested plus interest earned was Rs. 770. The amount invested was = ?

5.
In what time will Rs. 1860 amount to 2641.20 at simple interest 12% per annum ?

6.
The simple interest on a sum of money at 8% per annum for 6 years is half the sum. The sum is:

7.
In how much time would the simple interest on a certain sum be 0.125 times the principal at 10% per annum?

8.
The population of a village decreases at the rate of 20% per annum. If its population 2 years ago was 10000, the present population is = ?

9.
Rs. 12000 is divided into two parts such that simple interest on the first part for 3 years at 12% per annum may be equal to the simple interest on the second part for $$4\frac{1}{2}$$ years at 16% per annum. The ratio of the first part to the second part is = ?

10.
A person who pays income tax at the rate of 4 paise per rupee, find that fall of interest rate (income tax) from 4% to 3.75% diminishes his net yearly income by Rs. 48. What is his capital ?