There are 25 rows of seats in an auditorium. The first row is of 20 seats, the second of 22 seats, the third of 24 seats and so on . How many seats are there in the 21st row ?

There are 25 rows of seats in an auditorium. The 1st row is of 20 seats , the 2nd row of 22 seats , the 3rd row of 24 seats and so on. How many seats are there in the 21st row ?

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 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

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

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 .

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 .

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 15th row and the total seats in the auditorium.

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?

In a threatre, there are 20 seats in the front row and 30 rows were alloted. Each successive row contains two additional seats than its front row. How many seats are there in the last row?