2018 April(A09) Math Question 12

Sequences and Patterns

- Arithmetic Sequences

12. The 220 graduating seniors of Madison- High School will sit in the center section of the school auditorium at the graduation ceremony. How many rows of seats will be needed to seat all of the graduating seniors if the first row has 10 seats and each succeeding row has 2 more seats than the previous row?

Choice G

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