Question

the mean of 25,26,28,x is 27 . find the value of x

Answer 1

Hey...

Here is your answer...

Mean of 4 numbers = 27

No. of terms = 4

Sum of terms = 25 + 26 + 28 + x
= 79 + x

So, 27 = 79 + x/4
108 = 79 + x
x = 108 - 79
x = 29

Hence, x = 29.

Hope this would help you.


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#Saadya

Answer 2

Mean = sum of observations/no. Of observations

27 = 25+26+28+x/4

27 = 79+x/4

108 = 79+x

x = 108-79
X = 29

Hence, 29 is the value of x