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Direct Method of Finding Mean

If the mean o...

Question

If the mean of x, x+3, x+5, x+7 and x+10 is 9, then the value of second observation is ____ .

A

5

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B

6

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C

7

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D

8

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Solution

The correct option is C 7

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Q. The mean of x, x+3, x+5, x+7, x+10 is 9, the value of second observation is:

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