Question

in 1st row of a concert hall has 25 seats and each row afterthe first has one more seat than the row before it . there are 32 rows of seats . 35 students from a class want to sit in the same row in which row would the class sit​

Answer 1

Answer:

Rn = 25 + n -1      where Rn is the number of seats in row n

R1 = 25 + 1 - 1 = 25

R2 = 25 + 2 - 1 =26

R3 = 25 + 3 - 1 =27

Rn = 25 +  n - 1 = 35

then n = 35 - 25 + 1 = 11

Answer 2

Answer:

35 students can fit in the 11TH ROW