Question

$1A$
$\underset{–}{\times A}$
$\underset{–}{9A}$

Find the value of $A$.

• A. $1$
• B. $2$
• C. $6$
• D. $4$

Answer 1

Answer: (C)

$6$

$1A\times A=9A,(10+A)\times \left(A\right)=90+A,10A+A^2=90+A{A}^2+9A-90=0A=6$