The mean of three numbers is 12. If one of the numbers is 8, what is the mean of

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Question: The mean of three numbers is 12. If one of the numbers is 8, what is the mean of the other two numbers? (2021)

Options:

Correct Answer: 12

Exam Year: 2021

Solution:

Total of three numbers = 3 * 12 = 36. Sum of the other two numbers = 36 - 8 = 28. Mean of the other two = 28 / 2 = 14.

The mean of three numbers is 12. If one of the numbers is 8, what is the mean of the other two numbers? (2021)

The mean of three numbers is 12. If one of the numbers is 8, what is the mean of the other two numbers? (2021)

Step 1: Understand that the mean (average) of three numbers is given as 12.
Step 2: To find the total of the three numbers, multiply the mean by the number of numbers: 3 * 12 = 36.
Step 3: One of the numbers is given as 8. To find the sum of the other two numbers, subtract 8 from the total: 36 - 8 = 28.
Step 4: Now, to find the mean of the other two numbers, divide their sum (28) by 2: 28 / 2 = 14.

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