Q. The mean of $n$ items is $\overline{X}$. If the first term is increased by 1, second by 2 and so on, then the new mean is
A) $\overline{X} + n$
B) $\overline{X} + \frac{n}{2}$
C) $\overline{X} + \frac{n + 1}{2}$
D) None of these
Explanation
The correct answer is Option C: $\overline{X} + \frac{n + 1}{2}$.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.