If 60% of a group of 500 are at risk, how many are not at risk?

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Question: If 60% of a group of 500 are at risk, how many are not at risk?

Options:

Correct Answer: 200

Solution:

At risk = 60% of 500 = 0.6 * 500 = 300. Not at risk = 500 - 300 = 200.

If 60% of a group of 500 are at risk, how many are not at risk?

If 60% of a group of 500 are at risk, how many are not at risk?

Step 1: Understand that 60% means 60 out of every 100.
Step 2: Calculate how many people are at risk by finding 60% of 500. This is done by multiplying 0.6 (which is 60% in decimal) by 500.
Step 3: Perform the multiplication: 0.6 * 500 = 300. This means 300 people are at risk.
Step 4: To find out how many are not at risk, subtract the number of people at risk from the total group size. So, 500 - 300.
Step 5: Perform the subtraction: 500 - 300 = 200. This means 200 people are not at risk.

Percentage Calculation – Understanding how to calculate a percentage of a total and its complement.
Basic Arithmetic – Performing subtraction to find the remaining quantity after a portion is identified.