Question

The arithmetic mean of first five natural number is

• A. $3$
• B. $4$
• C. $5$
• D. $6$

Answer 1

The correct option is A $3$

The first five natural numbers are $1,2,3,4,5$
Mean $=\frac{Sum}{Numbersofterms}=\frac{1+2+3+4+5}{5}$
$=\frac{15}{5}=3$

$\therefore$ Mean $=3$.