If each of n numbers xi = i is replaced by (i + 1)xi, then t... | Mathematics | SolveeIt | Solveeit

Today, August 24

Question

If each of n numbers xi = i is replaced by (i + 1)xi, then the new mean is

A

$\frac{(n+1)(n+2)}{n}$

B

n+1

C

$\frac{(n+1)(n+2)}{3}$

D

$\frac{(n+1)(5n+4)}{6}$

Answer

$\frac{(n+1)(n+2)}{3}$

Explanation

Solution

The correct answer is(C): $\frac{(n+1)(n+2)}{3}$