In a flower bed, the first row has 23 rose plants, the second 21, the third 19, and so on. The last row has 5 plants.

In which row are there 11 plants?

Question

In a flower bed, the first row has 23 rose plants, the second 21, the third 19, and so on. The last row has 5 plants. In which row are there 11 plants?

Accepted Answer

7. a = 23, d = -2. 11 = 23 + (n-1)(-2) => -12 = -2(n-1) => n - 1 = 6 => n = 7. So the 7th row.

In a flower bed, the first row has 23 rose plants, the second 21, the third 19, and so on. The last row has 5 plants.

In which row are there 11 plants?

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 10 nth Term of an AP practice

In a flower bed, the first row has 23 rose plants, the second 21, the third 19, and so on. The last row has 5 plants.In which row are there 11 plants?

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 10 nth Term of an AP practice

In a flower bed, the first row has 23 rose plants, the second 21, the third 19, and so on. The last row has 5 plants.

In which row are there 11 plants?