What is the number of seats in the first row?
Finding the sum of a series arithmetic
Interactive Video
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Mathematics
•
11th Grade - University
•
Hard
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The video tutorial addresses a problem involving sequences, specifically calculating the total number of seats in an auditorium with 48 rows. The first row has 20 seats, and each subsequent row increases by 2 seats. The instructor explains how to derive a rule for the sequence and uses formulas to calculate the total number of seats. The process involves understanding the series, deriving the rule, and applying the sum formula to find the total number of seats efficiently.
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5 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
How many rows does the auditorium have?
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3.
OPEN ENDED QUESTION
3 mins • 1 pt
What is the rule for the number of seats in each row?
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4.
OPEN ENDED QUESTION
3 mins • 1 pt
How do you calculate the total number of seats in the auditorium?
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5.
OPEN ENDED QUESTION
3 mins • 1 pt
What is the sum of the seats in all 48 rows?
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