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In a pie chart showing the distribution of time spent on different subjects, if

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Question: In a pie chart showing the distribution of time spent on different subjects, if Mathematics takes up 35% and the total time is 40 hours, how many hours are spent on Mathematics?

Options:

  1. 10 hours
  2. 12 hours
  3. 14 hours
  4. 16 hours

Correct Answer: 14 hours

Solution: 

Time spent on Mathematics = 35% of 40 hours = 0.35 * 40 = 14 hours.

In a pie chart showing the distribution of time spent on different subjects, if

Practice Questions

Q1
In a pie chart showing the distribution of time spent on different subjects, if Mathematics takes up 35% and the total time is 40 hours, how many hours are spent on Mathematics?
  1. 10 hours
  2. 12 hours
  3. 14 hours
  4. 16 hours

Questions & Step-by-Step Solutions

In a pie chart showing the distribution of time spent on different subjects, if Mathematics takes up 35% and the total time is 40 hours, how many hours are spent on Mathematics?
  • Step 1: Understand that 35% means 35 out of every 100 parts.
  • Step 2: Know that the total time spent is 40 hours.
  • Step 3: To find out how many hours are spent on Mathematics, we need to calculate 35% of 40 hours.
  • Step 4: Convert 35% to a decimal by dividing 35 by 100, which gives us 0.35.
  • Step 5: Multiply 0.35 by 40 hours to find the time spent on Mathematics.
  • Step 6: Calculate 0.35 * 40 = 14 hours.
  • Percentage Calculation – Understanding how to calculate a percentage of a total amount.
  • Proportional Reasoning – Applying proportional reasoning to determine parts of a whole based on given percentages.
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