If a national event has 1,200 participants and 15% of them are from abroad, how

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Question: If a national event has 1,200 participants and 15% of them are from abroad, how many participants are from the country? (2022)

Options:

Correct Answer: 1,020

Exam Year: 2022

Solution:

Number of participants from abroad = 15% of 1,200 = 0.15 * 1,200 = 180. Participants from the country = 1,200 - 180 = 1,020.

If a national event has 1,200 participants and 15% of them are from abroad, how many participants are from the country? (2022)

If a national event has 1,200 participants and 15% of them are from abroad, how many participants are from the country? (2022)

Step 1: Find out how many participants are from abroad by calculating 15% of 1,200.
Step 2: To calculate 15% of 1,200, multiply 1,200 by 0.15 (which is the decimal form of 15%).
Step 3: Perform the multiplication: 0.15 * 1,200 = 180. This means there are 180 participants from abroad.
Step 4: To find out how many participants are from the country, subtract the number of participants from abroad (180) from the total number of participants (1,200).
Step 5: Perform the subtraction: 1,200 - 180 = 1,020. This means there are 1,020 participants from the country.

Percentage Calculation – Understanding how to calculate a percentage of a total and apply it to find a subset.
Subtraction – Using subtraction to find the remaining quantity after determining a part of the whole.