Question

The sum first $25$ natural numbers is

• A. $325$
• B. $300$
• C. $505$
• D. None of these

Answer 1

The correct option is A

$325$

Sum of n natural numbers $=\frac{n(n+1)}{2}$

$$\begin{gathered} =\frac{25\times 26}{2} \\ =325 \end{gathered}$$

Hence, option A is correct.