Question

In a auditorium the seats are so arranged that there are 10 seats in the first row,13 seats in the second,16 seats in the third etc. thereby increasing the number of seats by 3 every next row. if there are 64 seats in the last row, how many rows of seats are there in the auditorium? Also find the total number of seats in the auditorium​

Answer 1

Answer:

Total row - 19

Total seat - 703

Step-by-step explanation:

Each row is increased by 3 seats .

So row will be - 10 ,13 ,16 ,19 ,22 ,25 ,28 ,31 ,34 ,37 ,40 ,43 ,46 ,49 ,52 ,55 ,58 ,61 ,64 .

Total number of row - 19

Total number of seats - 703.

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