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There is an auditorium with 27 rows of s...

There is an auditorium with 27 rows of seats. There are 20 seats in the first row, 22 seats in the second row, 24 seats in the third row and so on. Find the number of seats in `15^(th)` row and also find how many total seats are there in the auditorium?

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The correct Answer is:
`therefore` There are 48 seats in `15^(th)` row and 1242 seats in the auditorium.
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Knowledge Check

  • A meeting hall has 30 rows in all. There are 20 seats in the first row, 24 seats in the second row and 28 seats in the third row and so on. How many seats are there in the hall?

    A
    136
    B
    4640
    C
    2340
    D
    192

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