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If the mean of five observations x ,\ ...

If the mean of five observations `x ,\ x+2,\ x+4,\ x+6,\ x+8\ i s\ 11 ,` then the mean of first three observations is

A

5

B

6

C

7

D

8

Text Solution

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The correct Answer is:
C
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Knowledge Check

  • If the mean of five observations x, x + 2, x + 4, x + 6, x + 8 is 11, then the mean of the first three observations is

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    9
    B
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    C
    13
    D
    None of these

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    C
    13
    D
    None of these

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    A
    12
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    15
    D
    9

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