Home

Home | Algebra | Patterns | Additional Investigations | Theater Seating


theater seating


The Mathematics Theater has twenty-five seats in the first row, twenty-seven seats in the second row, twenty-nine seats in the third row, and so on. How many seats are in the theater if there are fifteen rows in all?

 

 Extensions

If the theater had 15 rows with r seats in the first row and t seats in the 15th row, then how many seats are there all together?

(Source: Adapted from Mathematics Teaching in the Middle School, Sep-Oct 1996)



Submit your idea for an investigation to InterMath.