Solve the problem.
-A theater has 40 rows with 29 seats in the first row, 32 in the second row, 35 in the third row, and so forth. How many seats are in the theater?
A)3500 seats
B)3560 seats
C)7000 seats
D)7120 seats

Question

Quizplus · Accepted Answer

The number of seats in each row increases by 3. So, the number of seats in the 40th row is 29 + (40 - 1) * 3 = 140. The total number of seats is the sum of the number of seats in each row, which is (29 + 140) * 40 / 2 = 3560.

Solve the Problem. -A Theater Has 40 Rows with 29 Seats in the Seats