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During a national event, if 70% of the attendees are adults and there are 350 at

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Question: During a national event, if 70% of the attendees are adults and there are 350 attendees, how many are children?

Options:

  1. 105
  2. 245
  3. 70
  4. 140

Correct Answer: 105

Solution: 

Number of adults = 70% of 350 = 0.70 * 350 = 245. Number of children = 350 - 245 = 105.

During a national event, if 70% of the attendees are adults and there are 350 at

Practice Questions

Q1
During a national event, if 70% of the attendees are adults and there are 350 attendees, how many are children?
  1. 105
  2. 245
  3. 70
  4. 140

Questions & Step-by-Step Solutions

During a national event, if 70% of the attendees are adults and there are 350 attendees, how many are children?
  • Step 1: Identify the total number of attendees, which is 350.
  • Step 2: Calculate the number of adults by finding 70% of 350. This is done by multiplying 0.70 by 350.
  • Step 3: Perform the multiplication: 0.70 * 350 = 245. This means there are 245 adults.
  • Step 4: To find the number of children, subtract the number of adults from the total number of attendees: 350 - 245.
  • Step 5: Perform the subtraction: 350 - 245 = 105. This means there are 105 children.
  • Percentage Calculation – Understanding how to calculate a percentage of a total number.
  • Subtraction – Using subtraction to find the remaining quantity after determining a part of the total.
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