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A pie chart shows the percentage of time spent on different subjects by a studen

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Question: A pie chart shows the percentage of time spent on different subjects by a student. If Mathematics takes up 35% of the time and the total study time is 20 hours, how many hours are spent on Mathematics?

Options:

  1. 5 hours
  2. 6 hours
  3. 7 hours
  4. 8 hours

Correct Answer: 7 hours

Solution: 

Hours spent on Mathematics = 35% of 20 hours = 0.35 * 20 = 7 hours.

A pie chart shows the percentage of time spent on different subjects by a studen

Practice Questions

Q1
A pie chart shows the percentage of time spent on different subjects by a student. If Mathematics takes up 35% of the time and the total study time is 20 hours, how many hours are spent on Mathematics?
  1. 5 hours
  2. 6 hours
  3. 7 hours
  4. 8 hours

Questions & Step-by-Step Solutions

A pie chart shows the percentage of time spent on different subjects by a student. If Mathematics takes up 35% of the time and the total study time is 20 hours, how many hours are spent on Mathematics?
  • Step 1: Understand that the total study time is 20 hours.
  • Step 2: Know that Mathematics takes up 35% of the total study time.
  • Step 3: Convert the percentage (35%) into a decimal by dividing by 100. This gives you 0.35.
  • Step 4: Multiply the decimal (0.35) by the total study time (20 hours).
  • Step 5: Calculate 0.35 * 20, which equals 7 hours.
  • Step 6: Conclude that the student spends 7 hours on Mathematics.
  • Percentage Calculation – Understanding how to calculate a percentage of a total amount.
  • Time Management – Applying time allocation based on given percentages.
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