Question

Find the sum of:
$1+3+5+7+9+11+13+15+17+19+21+23$

• A. $(11{)}^2$
• B. $(12{)}^2$
• C. $(10{)}^2$
• D. $(13{)}^2$

Answer 1

The correct option is B $(12{)}^2$

Sum of the odd numbers $=n^2$.

$n=$ number of terms $=12$

Therefore, the sum is $(12{)}^2$.