# The first row of a concert hall has 25 seats, and each row after the first has one more seat than the row before it. there are 32 rows of seats. suppose 12 more rows of seats are built (where each row has one more seat than the row before it). how many additional seats will the concert hall have?

Answers: 2

## Answers

The first row of a concert hall has 25 seats, and each row after the first has one more seat than th...

a1 , a2, a3 , a4.

★therefore : -

★the sequence will be like this : -

ap - 68 , a1 , a2 , a3 , a4 , 3

6th term = 3

a1 = 68

sixth term = a + 5d

68 + 5d = 3

5d = -65

d = -13

★now put the value we get : -a1 = 68 - 13

= 55

a2 = 55 - 13

= 42

a3 = 42 - 13

= 29

a4 = 29 - 13

= 16

★4 means - 55 , 42 , 29 ,16.rachel will be 12, 3 years from

answer:

Ewan ko ba dyan sa math na yan HAHA