Question

there is an auditorium with 35 rows of seats.
There are 20 seats in 1st row, 22 seats in 2nd row and so on find no of seats in 28th row
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Answer 1

Answer:

Given the number of seats in row1, row2 and row3 is 20, 22 and 24.

We note that the number of seats in each subsequent row forms an AP.

20, 22, 24, ..... and so on.

We need to find the number of seats in row25.