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The first row of an auditorium has 42 seats. Each row after the first has 3 more seats than the row before it. How many seats are in row 25? Which row has 90 seats?
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The first row of an auditorium has 42 seats. Each row after the first has 3 more seats than the row before it. How many seats are in row 25? Which row has 90 seats?

User Anevil
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1 Answer

5 votes
Row 25 should have 117 seats.
Row 16 should have 90 seats

User Gauthier
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