Question

If $4\times 5=1625$, $3\times 8=964$, $4\times 6=436$ then $1\times 9=?$

• A. $36$
• B. $150$
• C. $181$
• D. $218$

Answer 1

The correct option is C $181$

If you see the given equation carefully then you may realize that $1625$ come because of $4^2$ and $5^2$

So by this logic we can write

$1\times 9=1^2{9}^2=181$

So option $C$ is correct.