Suppose mean of a series of 5 items is 30. Four values are, 10,15,30 and 35 respectively. Find the missing (5th) value of the series.

Suppose mean of a series of 5 items is 30. Four values are, 10,15,30 a

1.	Suppose mean of a series of 5 items is 30. Four values are, 10,15,30 and 35 respectively. Find the missing (5th) value of the series.
Answer» <html><body><p></p>Solution :Assume 5th value as `X_(5)`. <br/> `barX=(X_(1)+X_(2)+X_(<a href="https://interviewquestions.tuteehub.com/tag/3-301577" style="font-weight:bold;" target="_blank" title="Click to know more about 3">3</a>)+X_(4)+X_(5))/N` <br/> `"<a href="https://interviewquestions.tuteehub.com/tag/given-473447" style="font-weight:bold;" target="_blank" title="Click to know more about GIVEN">GIVEN</a>: "X_(1)=10,X_(2)=<a href="https://interviewquestions.tuteehub.com/tag/15-274069" style="font-weight:bold;" target="_blank" title="Click to know more about 15">15</a>,X_(3)=30,X_(4)=35,X_(5)=?` <br/> `barX=30,N=5` <br/> `30=(10+15+30+35+X_(5))/5=(90+X_(5))/5` <br/> `:.""30xx5=90+X_(5)` <br/> `Or,150=90+X_(5)` <br/> `:.""X_(5)=150-90` <br/> `=<a href="https://interviewquestions.tuteehub.com/tag/60-328817" style="font-weight:bold;" target="_blank" title="Click to know more about 60">60</a>` <br/> <a href="https://interviewquestions.tuteehub.com/tag/thus-2307358" style="font-weight:bold;" target="_blank" title="Click to know more about THUS">THUS</a>, Value of the5th item = 60.</body></html>