Percentage

Percentage - The word - ‘Percentage’ is a combination per + cent. A comparison by 100 is called percentage. It is the most common topic in the quantitative aptitude section in all government job exams. The percentage is the most important topic because the whole theory of arithmetic is depended on its concept. We have learned it in our school days but here we need some smart approaches to solve the questions. Questions in quantitative aptitude sections of government and competitive exams don’t match much from what we studied in school. Most common types of questions asked in percentages are as follows -

1. How to calculate the percentage of marks

2. Questions based on basic concepts of percentage

3. Questions based on net increase & decrease

4. Questions based on consumption, price & quantity

5. Questions based on ratios

6. Questions based on examination & marks

7. Questions based on elections

8. Questions based on population

9. Questions based on the fractional method

10. Questions based on Venn-diagram

How to prepare percentages?

• Tables, square, cubes are the prerequisite for the percentages.

• Learn the questions solving using base 100.

• Learn the questions solving using fractional values.

• Apply both techniques to solve different conceptual problems.

• Solve each question that appeared in past papers.

The percentage is important because all the other topics in arithmetic are based on the concepts of percentages. Some of the topics which are totally dependable over percentages are as follows:-

1. Profit & loss

2. Simple Interest & Compound Interest

3. Data Interpretation

After having a look through percentage we can create some percentage formulas to use as mnemonics.

All questions of Percentage

Q 1.

What percent of is .

1. 3.32%

2. 2.22% (Correct)

3. 45%

4. 450%

5. 10%

View Solution

Q 2.

What is 20% of 50% of 75% of 50% of 140?

1. 5.25 (Correct)

2. 4.25

3. 7.25

4. 5.5

5. 6.75

View Solution

Q 3.

If the cost of a calculator worth Rs 250 is increased by Rs 100, the rate of increase is

1. 30 %

2. 40% (Correct)

3. 25%

4. none

5. 100%

View Solution

Q 4.

A number increased by 37.5% gives 99 the number is

1. 140

2. 86

3. 72 (Correct)

4. 48

5. 61.5

View Solution

Q 5.

Ram sells his goods 25% cheaper than Shyam and 25% dearer than Bram. How much percentage is Bram’s goods cheaper than Shyam’s?

1. 55 %

2. 50%

3. 66.66%

4. 40% (Correct)

5. 33.33%

View Solution

Q 6.

In an exam, 52% of the candidates failed in science, 42% in maths and 17% in both. The number of those who passed in both subjects is

1. 83%

2. 64%

3. 23% (Correct)

4. 42%

5. 55.5%

View Solution

Q 7.

The price of an item is increased by 20% and then decreased by 20%. The final price as compared to the original price

1. 5 % more

2. 20% more

3. 20% less

4. 4% less (Correct)

5. 4% more

View Solution

Q 8.

If A's height is 40% less than that of B, how much percent B's height is more than that of A?

1. 66.66% (Correct)

2. 76.66%

3. 56.66%

4. 86.66%

5. 96.66%

View Solution

Q 9.

A student multiplied a number by instead of , What is the percentage error in the calculation?

1. 54 %

2. 64% (Correct)

3. 74%

4. 45%

5. 84%

View Solution

Q 10.

In an election between 2 candidates, Bhiku gets 65% of the total valid votes. If the total votes were 6000, what is the number of valid votes that the other candidate Mhatre gets if 25% of the total votes were declared invalid?

1. 1692

2. 1575 (Correct)

3. 1675

4. 1525

5. 1625

View Solution

Q 11.

A batsman scored 120 runs which included 3 boundaries and 8 sixes. What percent of his total score did he make by running between the wickets?

1. 40

2. 60

3. 50 (Correct)

4. 55

5. 45

View Solution

Q 12.

If the price of a book is first decreased by 25% and then increased by 20%, then the net change in the price will be :

1. 10% (Correct)

2. 20%

3. 35%

4. 40%

5. 30%

View Solution

Q 13.

A man spends 35% of his income on food, 25% on children's education and 80% of the remaining on house rent. What percent of his income he is left with?

1. 6

2. 8 (Correct)

3. 9

4. 12

5. 10

View Solution

Q 14.

A's salary is 40% of B's salary which is 25% of C's salary. What percentage of C's salary is A's salary?

1. 10% (Correct)

2. 20%

3. 30%

4. 25%

5. 40%

View Solution

Q 15.

Of the 1000 inhabitants of a town, 60 % are males of whom 20 % are literate. If, of all the inhabitants, 25% are literate, then what percent of the females of the town are literate ?

1. 32.5% (Correct)

2. 37.5%

3. 46.6%

4. 53.2%

5. 43%

View Solution

Q 16.

X is 75% of Y. The percentage of Y to X is:

1. 25%

2. 75%

3. 125%

4. 133.33% (Correct)

5. 33.33%

View Solution

Q 17.

X is 80% of y. The percentage of y to y - x is:

1. 250 %

2. 400%

3. 500% (Correct)

4. None of these

5. 120%

View Solution

Q 18.

Verma gets 10% more than Akbar, then Akbar gets

1. 10% less than Verma

2. 8 % more than Verma

3. 9.09% less than Verma (Correct)

4. 10% more than Verma

5. 9% less than Verma

View Solution

Q 19.

The price of sugar has risen. By 50% by what fraction must a householder reduce his consumption of sugar so as not to increase his expenditure?

1. 1/5

2. 1/3 (Correct)

3. 1/2

4. none

5. 1/4

View Solution

Q 20.

The population of a town is 12000 if the number of males be increased by 6% and that of females by 8%, the population would be increased to 12800. Find the strength of females in the town.

1. 3500

2. 4000

3. 4500

4. 4200

5. 5000 (Correct)

View Solution

Q 21.

In a mixture of 80 liters of milk and water, 25% of the mixture is milk. How much water should be added to the mixture so that milk becomes 20% of the mixture?

1. 20 liters (Correct)

2. 30 liters

3. 25 liters

4. 24 liters

5. 15 liters

View Solution

Q 22.

300 gm of sugar solution has 30% sugar in it. How much sugar should be added to make it 60% in the solution?

1. 90 gm

2. 220 gm

3. 225 gm (Correct)

4. 315 gm

5. 180 gm

View Solution

Q 23.

A man spent 6.25% of what he had. If his expenditure amounted to Rs 75, what amount he had?

1. Rs 1000

2. Rs 1200 (Correct)

3. Rs 1600

4. Rs 1500

5. Rs 1100

View Solution

Q 24.

An Engineering student has to secure 40% marks to pass. He get 80 marks and fails by 40 marks. Find his maximum marks.

1. 500

2. 300(Correct)

3. 250

4. 400

5. 200

View Solution

Q 25.

The population of a town increased from 70000 to 71050. Find the increase percent .

1. 1.5% (Correct)

2. 1.45%

3. 1.25%

4. 2%

5. 1.75%

View Solution