Question

In a sequence of seats, if the first row has 45 seats, and the pattern continues with decreasing seats, what is the common difference?

a) 2
b) 4
c) 6
d) 8

Answer 1

To find the common difference in a sequence of seats, subtract the number of seats in the second row from the number of seats in the first row.

Step-by-step explanation:

To find the common difference in a sequence of seats, we need to determine how the number of seats changes from one row to the next. In this case, the pattern continues with decreasing seats, which means that the number of seats decreases by the same amount as we move to the next row. To find this common difference, subtract the number of seats in the second row from the number of seats in the first row. So, the common difference is:

45 - X = Y

where X is the number of seats in the second row and Y represents the common difference.