(3-1 n )+ (3-2 n )+ (3-3 n )+ upto n terms is - Vidyadip

MCQ

$\left(3-\frac{1}{n}\right)+\left(3-\frac{2}{n}\right)+\left(3-\frac{3}{n}\right)+\ldots$ upto $n$ terms is

A
$\frac{1}{2}(3 n-1)$
B
$\frac{1}{2}(3 n+1)$
✓
$\frac{1}{2}(5 n-1)$
D
$\frac{1}{2}(5 n+1)$

✓

Answer

Correct option: C.

$\frac{1}{2}(5 n-1)$

C

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