Question

The sum of first eight odd numbers is

• A. 64
• B. 74
• C. 80
• D. 95

Answer 1

The correct option is A 64

The sum of first consecutive ${}^{\prime }{n}^{\prime }$ odd numbers, $=1+3+5+...+(2n-1)=n^2$

Here $n=8$

Hence $1+3+5+...=8\times 8$

$=64$