Question

in a flower bed, there are 43 rose plants in the first row, 41 in the second, 39 in the third and so on.There are 11 rose plants in the last row.How many row are there in the flower bed

Answer 1

I think there are 18 flower beds

Answer 2

There are 43 rose plants in the 1st row of the bed
41 in 2nd row of the flower bed
39 " "3rd row""""'"'
likewise,
37 in the 4th row
.
.
11 in the last row
We can observe that there is a series.
Number of rows =[(43-11)/2]+1=17rows