What is the formula to find out arithmetic mean through Short-cut Method in individual series?

What is the formula to find out arithmetic mean through Short-cut Meth

1.	What is the formula to find out arithmetic mean through Short-cut Method in individual series?
Answer» <html><body><p>`<a href="https://interviewquestions.tuteehub.com/tag/barx-2461082" style="font-weight:bold;" target="_blank" title="Click to know more about BARX">BARX</a>=(sumX)/<a href="https://interviewquestions.tuteehub.com/tag/n-568463" style="font-weight:bold;" target="_blank" title="Click to know more about N">N</a>`<br/>`barX =A+(<a href="https://interviewquestions.tuteehub.com/tag/sumd-3089020" style="font-weight:bold;" target="_blank" title="Click to know more about SUMD">SUMD</a>)/N`<br/>`barX=(sumX)/N+A`<br/>`barX = (sumfX)/(sumf)`</p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :B</body></html>