Question

The mean of x − 5, x − 3, х − 1 and x + 1 is ______.

Options

• 4x − 8

• `(4x - 8)/4`

• `(x - 3 + x - 1)/2`

• none of these

Answer 1

The mean of x − 5, x − 3, х − 1 and x + 1 is `bb underline((4x - 8)/4)`.

Explanation:

The mean is calculated by dividing the sum of all terms by the total number of terms (4). Summing the given values gives (x − 5) + (x − 3) + (x − 1) + (x + 1) = 4x - 8, which makes the mean `(4x - 8)/4`.