Sainik School Entrance Exam 2021 Solved Paper

Question : 7 of 150

Marks: +1, -0

If the mean of the following data is 8 , then find the value of

x

2,4,8,6, x, 5

Solution:

(b) The mean of the data

={\Sum \of \the \total \numbers }/ { \Total \numbers }

⇒ 8={2+4+8+6+x+5}/{6}

⇒ 48=25+x ⇒x=48-25 ⇒ 23 .

So, the value of

x

is 23 .

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