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25 May, 06:37

The average of integers a and b is 12. if c = 3, what is the average of integers a, b, and c?

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  1. 25 May, 07:29
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    You know that the sum of a and b is 24, because the average is the sum of the numbers divided by the amount of numbers added together, and 12*2 is 24. Add 3 to 24 so you have 27, and then divide that by 3 because there are now 3 numbers in the set. The average of a, b, and c is 9.
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