Question

In a garden bed, there are 23 rose plants in the first row, 21 are in the 2nd, 19 in 3rd row and so on.

Answer 1

First row= 23
Second row =21
Last row = 5
So as series is in the following way
23,21,.........................,5
a=23 D= -2 an= 5
an = a+(n-1)d. an = 23+(n - 1)-2
5-23 =(n-1)-2
-18 =(n-1)-2
-18/-2 =n-1
9 =n-1
9+1 =n
N =10

#Draqueen⭐