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In a pie chart representing the distribution of a school's student population, 5

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Question: In a pie chart representing the distribution of a school\'s student population, 50% are girls, 30% are boys, 15% are non-binary, and 5% are other. If there are 400 students, how many are boys?

Options:

  1. 100
  2. 120
  3. 130
  4. 150

Correct Answer: 120

Solution: 

30% of 400 students is 0.30 * 400 = 120 boys.

In a pie chart representing the distribution of a school's student population, 5

Practice Questions

Q1
In a pie chart representing the distribution of a school's student population, 50% are girls, 30% are boys, 15% are non-binary, and 5% are other. If there are 400 students, how many are boys?
  1. 100
  2. 120
  3. 130
  4. 150

Questions & Step-by-Step Solutions

In a pie chart representing the distribution of a school's student population, 50% are girls, 30% are boys, 15% are non-binary, and 5% are other. If there are 400 students, how many are boys?
  • Step 1: Understand that the total number of students is 400.
  • Step 2: Identify that we need to find the number of boys, which is 30% of the total.
  • Step 3: Convert the percentage to a decimal by dividing 30 by 100, which gives us 0.30.
  • Step 4: Multiply the total number of students (400) by the decimal (0.30) to find the number of boys.
  • Step 5: Calculate 0.30 * 400, which equals 120.
  • Percentage Calculation – Understanding how to calculate a percentage of a total amount.
  • Pie Chart Interpretation – Interpreting data represented in a pie chart format.
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