<p>A theatre has&nbsp;\(20\) rows of seats. There are \(15\) seats in the first row, \(17\) seats in the second row, and each successive row of seats has two more seats in it than the previous row.</p>
<ol class="abc-list"><li><div class="list-item-paragraph">Calculate the number of seats in the \(20^{th}\) row.<span class="inline-marks">[4]</span></div></li><li><div class="list-item-paragraph">Calculate the <strong>total</strong> number of seats.<span class="inline-marks">[2]</span></div></li></ol>

A theatre has \(20\) rows of seats. There are \(15\) seats in the first row, \(17\) seats in the second row, and each successive row of seats has two more seats in it than the previous row.

Calculate the number of seats in the \(20^{th}\) row.

Arithmetic Progression

Sequence and Series

International Baccalaureate Mathematics: Applications and Interpretation Standard Level

Sequence and Series - Arithmetic Progression

Sequence and Series - Arithmetic Progression