If the mean of 4, x, 6, 9,9,y and 13 is 18 then – InterviewSolution

1.

If the mean of 4, x, 6, 9,9,y and 13 is 18 then

Answer»

Answer:

Answer

As we KNOW,

x

=

n

x

+x

+....+x

n

here

x

n=5

So, 18=

5

16+14+x+23+20

∴90=73+x

∴x=90−73

x=17

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