An architect designs a theater with 15 seats in the first row, 18 seats in the second…
MATHEMATICS · Subjective · A Level · Mathematics · Sequences and series · Sequences and series
Problem
An architect designs a theater with 15 seats in the first row, 18 seats in the second row, 21 seats in the third row, and so on. If the theater is to have a seating capacity of 870 , how many rows must the architect use in her design?