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There is an auditorium with 35 rows of s...

There is an auditorium with 35 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 the twenty second row .

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The correct Answer is:
62
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Knowledge Check

  • In an auditorium, seats are arranged in rows and columns. The number of rows were equal to the number of seats in each row. When the number of rows were doubled and the number of seats in each row was reduced by 10, the total number of seats increased by 300. How many number of seats are there in the auditorium after re-arrangement.

    A
    860
    B
    990
    C
    1200
    D
    960

  • In an auditorium, seats are arranged in rows and columns. The number of rows were equal to the number of seats in each row. When the number of rows were doubled and the number of seats in each row was reduced by 10, the total number of seats increased by 300. How many number of seats are there in the auditorium in original arrangement ?

    A
    725
    B
    400
    C
    900
    D
    680

  • In an auditorium, seats are arranged in rows and columns. The number of rows were equal to the number of seats in each row. When the number of rows were doubled and the number of seats in each row was reduced by 10, the total number of seats increased by 300. How many number of columns are there in the auditorium after re-arrangement?

    A
    42
    B
    20
    C
    25
    D
    32

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    In an auditorium, seats are arranged in rows was equal to the number of seats in each row. When the number of rows was doubled and the number of seats in each row was reduced by 10, the total number of seats increased by 300. Find the number of rows in original arrangement.

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