Question
If $B \times B = AB,$ then either $A = 2, B = 5$ or $A =$ ______, $B =$ ______.
✓
Answer
If $B \times B = AB,$ then either $A = 2, B = 5$ or $A = 3, B = 6.$
Solution:
Here, $B \times B$ is a two-digit number, whose unit digit is $B,$
therefore the value of $B$ is either $5$ or $6.$
If $B = 5$, then $A = 2$ and if $B = 6$ then $A = 3$
Solution:
Here, $B \times B$ is a two-digit number, whose unit digit is $B,$
therefore the value of $B$ is either $5$ or $6.$
If $B = 5$, then $A = 2$ and if $B = 6$ then $A = 3$
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