SOLUTION: If the average of x and y is 3, what is the average of x, y and 6?

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Question 301922: If the average of x and y is 3, what is the average of x, y and 6?
Answer by london maths tutor(243) About Me  (Show Source):
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If the average of x and y is 3, what is the average of x, y and 6?
The total value of x and y = 3 x 2
= 6
The total of x , y and 6 = 6 + 6
= 12
The average of x, y and 6 = 12 / 3
= 4