Answer:
There are 3 chairs in one row.
Step-by-step explanation:
Let [tex]$ x $[/tex] be the number of chairs in one row. That is the length of one row.
Now, from the given data, two rows of length [tex]$ x $[/tex] can be formed with one chair left.
Or, if 17 extra chairs given, we can form 8 rows of the same length.
This means that there are [tex]$ 2x + 1 $[/tex] chairs in the first case. And since with 17 extra chairs we can form 8 rows, the equation would be [tex]$ (2x + 1) + 17 = 8x $[/tex]
Solving this for '[tex]x[/tex]' we get,
[tex]$ 2x + 18 = 8x $[/tex]
[tex]$ \implies 18 = 6x $[/tex]
[tex]$ \implies x = 3 $[/tex]
Therefore, the length of each row is three.
That is, there are three chairs in one row.
