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If the mean of 5 observiation x , x+2, x...

If the mean of 5 observiation x , x+2, x+4 x+6, and x + 8 is 11 , find the value of x ,

A

5

B

6

C

7

D

8

Text Solution

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The correct Answer is:
C
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If the mean of 5 observations x , x+2, x+4, x+6 and x+8 is 11, then the mean of the last three observations is (a) 11 (b) 13 (c) 15 (d) 17

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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

    A
    9
    B
    11
    C
    13
    D
    None of these

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    9
    B
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    C
    13
    D
    None of these

  • The mean of hte five observations x, x + 2, x + 4, x + 6 and x + 8 is 11 . Then the mean of the first three observations are ?

    A
    9
    B
    20
    C
    12
    D
    2

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