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What is the mean of $x, x + 2, x + 4, x + 6, x + 8$ ?

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x+2

x+3

x+4

answer is D.

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Detailed Solution

Given-The numbers are

x, x + 2, x + 4, x + 6, x + 8

Sum of numbers =

x, x + 2, x + 4, x + 6, x + 8

⇒ S u m of numbers = 5x + 20

By using,

Mean = Sum of numbers T o t a l Numbers

⇒ M e a n = 5 x + 20 5 ⇒ M e a n = 5 (x + 4) 5 ⇒ M e a n = x + 4

Hence, the mean of the given numbers is,

x + 4

.
Therefore, option 4 is the correct option.

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