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During a national event, if 70% of the attendees are adults and there are 500 at

Practice Questions

Q1
During a national event, if 70% of the attendees are adults and there are 500 attendees, how many are children? (2022)
  1. 150
  2. 200
  3. 100
  4. 250

Questions & Step-by-Step Solutions

During a national event, if 70% of the attendees are adults and there are 500 attendees, how many are children? (2022)
  • Step 1: Identify the total number of attendees, which is 500.
  • Step 2: Calculate the number of adults by finding 70% of 500. This is done by multiplying 0.70 by 500.
  • Step 3: Perform the multiplication: 0.70 * 500 = 350. So, there are 350 adults.
  • Step 4: To find the number of children, subtract the number of adults from the total number of attendees: 500 - 350.
  • Step 5: Perform the subtraction: 500 - 350 = 150. So, there are 150 children.
  • Percentage Calculation – Understanding how to calculate a percentage of a total amount.
  • Subtraction – Using subtraction to find the remaining quantity after a portion has been accounted for.
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