1 Answer

Jwoww · Answer 1 · 2023-02-28T07:23:12+0000

Since there are 352 expected students, the minimum amount of chairs is 352.

Then, if there are 21 rows and each row has the same number of chairs (let's call it x), the minimum amount of chairs per row is given by:

$\begin{gathered} 21\text{ rows}\cdot x\text{ chairs per row}=352\text{ chairs}\\ \\ 21x=352\\ \\ x=(352)/(21)\\ \\ x=16.76 \end{gathered}$

Rounding to the next even number, there are 18 chairs per row.

The total number of chairs is:

$21x=21\cdot18=378\text{ chairs}$

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