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A pie chart shows the percentage of time spent on different activities in a week

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Question: A pie chart shows the percentage of time spent on different activities in a week. If \'Exercise\' is represented by 15% of the chart, how many hours does this represent in a 168-hour week?

Options:

  1. 10.5 hours
  2. 15 hours
  3. 20 hours
  4. 25 hours

Correct Answer: 10.5 hours

Solution: 

15% of 168 hours = 0.15 * 168 = 25.2 hours.

A pie chart shows the percentage of time spent on different activities in a week

Practice Questions

Q1
A pie chart shows the percentage of time spent on different activities in a week. If 'Exercise' is represented by 15% of the chart, how many hours does this represent in a 168-hour week?
  1. 10.5 hours
  2. 15 hours
  3. 20 hours
  4. 25 hours

Questions & Step-by-Step Solutions

A pie chart shows the percentage of time spent on different activities in a week. If 'Exercise' is represented by 15% of the chart, how many hours does this represent in a 168-hour week?
  • Step 1: Understand that a week has 168 hours.
  • Step 2: Know that 'Exercise' takes up 15% of the week.
  • Step 3: Convert the percentage to a decimal by dividing by 100. So, 15% becomes 0.15.
  • Step 4: Multiply the total hours in a week (168) by the decimal (0.15).
  • Step 5: Calculate 0.15 * 168 to find out how many hours are spent on exercise.
  • Percentage Calculation – Understanding how to calculate a percentage of a total value.
  • Time Conversion – Converting a percentage into actual time based on a given total number of hours.
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