SOLUTION: a conference hall has 20 rows of seats .the first row contains 20 seats,the second row contains 22 seats, and third row contains 24 seats and so on.how many seats are there in th

Question 1040978: a conference hall has 20 rows of seats .the first row contains 20 seats,the second row contains 22 seats,
and third row contains 24 seats and so on.how many seats are there in the conference hall logic

Answer by ikleyn(52788) (Show Source): You can put this solution on YOUR website!
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a conference hall has 20 rows of seats .the first row contains 20 seats,the second row contains 22 seats,
and third row contains 24 seats and so on.how many seats are there in the conference hall logic
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Arithmetic progression with the first term 20 and the common difference 2.
They ask you to find the sum of the first 20 terms.


Similar problem was solved in the lesson Word problems on arithmetic progressions in this site (Problem 4).

Read it and use it as your sample.


For arithmetic progressions read this lesson Arithmetic progressions in this site.

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