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ACT® Math

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Difficult

Arithmetic Series

ACTMAT-NXYIWJ

Use the following information to answer questions 4-7:

In Euclid High School's auditorium, the first row contains 14 seats, the second row contains 17 seats, etc., adding 3 additional seats per row until the back row, row 23.

How many total seats are in the 23 rows of Euclid High School's auditorium?

A

$80$

B

$253$

C

$276$

D

$1081$

E

$3160$