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In a pie chart showing the preferences of students for different subjects, if Ma

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Question: In a pie chart showing the preferences of students for different subjects, if Mathematics is represented by a 90-degree angle, what percentage of students prefer Mathematics?

Options:

  1. 25%
  2. 30%
  3. 50%
  4. 75%

Correct Answer: 25%

Solution: 

A 90-degree angle represents 1/4 of the circle, which is 25%.

In a pie chart showing the preferences of students for different subjects, if Ma

Practice Questions

Q1
In a pie chart showing the preferences of students for different subjects, if Mathematics is represented by a 90-degree angle, what percentage of students prefer Mathematics?
  1. 25%
  2. 30%
  3. 50%
  4. 75%

Questions & Step-by-Step Solutions

In a pie chart showing the preferences of students for different subjects, if Mathematics is represented by a 90-degree angle, what percentage of students prefer Mathematics?
  • Step 1: Understand that a pie chart is a circle that represents data.
  • Step 2: Know that a full circle is 360 degrees.
  • Step 3: Identify that a 90-degree angle is part of the circle.
  • Step 4: Calculate what fraction of the circle 90 degrees is by dividing 90 by 360.
  • Step 5: Perform the calculation: 90 ÷ 360 = 1/4.
  • Step 6: Convert the fraction 1/4 into a percentage by multiplying by 100.
  • Step 7: Perform the calculation: (1/4) × 100 = 25%.
  • Step 8: Conclude that 25% of students prefer Mathematics.
  • Understanding Pie Charts – A pie chart represents data in a circular format, where the entire circle corresponds to 100% of the data. Each segment's angle can be used to determine the percentage of the whole.
  • Angle to Percentage Conversion – To find the percentage represented by an angle in a pie chart, divide the angle by 360 degrees and multiply by 100.
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