Quantitative Aptitude

Fractions and Percentages

344 Questions

Fractions and percentages form the foundation of quantitative aptitude, requiring the conversion of values between different formats. Questions cover percentage increases, fractional equivalents, and basic arithmetic manipulations. These concepts are heavily tested in SSC, banking, and railway competitive exams.

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Fractions and Percentages Questions

Multiple choice

A farmer has 120 acres of land. He plants corn on 50% of the land, soybeans on 30% of the land, and wheat on the rest of the land. How many acres of land does he plant wheat on?

  1. 24

  2. 36

  3. 48

  4. 60
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The farmer plants corn on 50% of the land, which is 50% of 120 acres = 60 acres. He plants soybeans on 30% of the land, which is 30% of 120 acres = 36 acres. Therefore, he plants wheat on 120 acres - 60 acres - 36 acres = 24 acres.

Multiple choice

A farmer has 120 acres of land. He plants corn on (\frac{2}{5}) of the land, soybeans on (\frac{1}{3}) of the land, and wheat on the rest of the land. How many acres of land does he plant wheat on?

  1. 40

  2. 48

  3. 56

  4. 64
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The farmer plants corn on (120 \times \frac{2}{5} = 48) acres of land. He plants soybeans on (120 \times \frac{1}{3} = 40) acres of land. Therefore, he plants wheat on (120 - 48 - 40 = 32) acres of land.

Multiple choice

In a famous Indian mathematical puzzle, a farmer has 100 acres of land. He plants wheat on 60% of the land, rice on 20% of the land, and vegetables on the remaining land. How many acres of land does he use for vegetables?

  1. 10

  2. 20

  3. 30

  4. 40
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

To calculate the number of acres used for vegetables, we need to find the remaining land after wheat and rice are planted. Wheat is planted on 60% of 100 acres, which is 0.6 * 100 = 60 acres. Rice is planted on 20% of 100 acres, which is 0.2 * 100 = 20 acres. Therefore, the remaining land for vegetables is 100 - 60 - 20 = 20 acres.

Multiple choice

What is the typical sugar content of maple syrup?

  1. 30-40%

  2. 50-60%

  3. 60-70%

  4. 70-80%
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Maple syrup typically contains between 60% and 70% sugar.

Multiple choice

What is the coinsurance for Medicare Part A?

  1. 20%

  2. 25%

  3. 30%

  4. 35%
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Medicare Part A coinsurance for 2023 is 20%.

Multiple choice

What is the typical cocoa content of dark chocolate?

  1. 35-50%

  2. 50-70%

  3. 70-85%

  4. 85-100%
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Dark chocolate typically has a cocoa content of 70-85%.

Multiple choice

What is the typical sugar content of ice cream?

  1. 10-12%

  2. 14-16%

  3. 18-20%

  4. 22-24%
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The typical sugar content of ice cream is 18-20%.

Multiple choice

What is the maximum allowable percentage of fly ash that can be used in cement manufacturing?

  1. 20%

  2. 30%

  3. 40%

  4. 50%
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Fly Ash Utilization Notification, 1999 specifies that the maximum allowable percentage of fly ash that can be used in cement manufacturing is 30%.

Multiple choice

What is the Medicare Part B coinsurance?

  1. 20%

  2. 25%

  3. 30%

  4. 35%
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Medicare Part B coinsurance is 20%. This means that you will have to pay 20% of the cost of your covered medical expenses after you meet the deductible.

Multiple choice

What is a good atom economy?

  1. Greater than 90%

  2. Between 70% and 90%

  3. Between 50% and 70%

  4. Less than 50%
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A good atom economy is greater than 90%.

Multiple choice

What is the rate of TDS?

  1. 1%

  2. 2%

  3. 5%

  4. 10%
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The rate of TDS is 2%.

Multiple choice

What is the rate of TCS?

  1. 0.5%

  2. 1%

  3. 2%

  4. 5%
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The rate of TCS is 1%.

Multiple choice

What is the precision of Atomic Absorption Spectroscopy?

  1. 1-2%.

  2. 2-3%.

  3. 3-4%.

  4. 4-5%.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The precision of Atomic Absorption Spectroscopy is typically in the range of 1-2%.

Multiple choice

What is the accuracy of Atomic Absorption Spectroscopy?

  1. 5-10%.

  2. 10-15%.

  3. 15-20%.

  4. 20-25%.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The accuracy of Atomic Absorption Spectroscopy is typically in the range of 5-10%.