Question

Select the odd word/letters/numbers from the given alternatives:

• A. $11-120$
• B. $17-290$
• C. $21-442$
• D. $12-145$

Answer 1

The correct option is A $11-120$

$11\to {11}^2-1=120$
$17\to {17}^2+1=290$
$21\to {21}^2+1=442$
$12\to {12}^2+1=145$
Hence $11-120$ is odd