Question

18. In a flower bed, there are 53 rose plants in the first row, 51 in the second row, 49 in the third
and so on. Observe these numbers and answer the following questions.
Does this series of numbers form an
Arithmetic Progression?
If it is an AP, what is its common difference?
Give an expression to find the number of
plants in the nth row.
In which row the number plants will be 35?
Can there be 24 plants in any row? ​

Answer 1

Answer:

First term(a)=53

1. YES IT IS AN AP
2. COMMON DIFFERENCE (d)=

2nd term-1st term=51-53=(-2)

3. A=a+(n-1)d,WHERE A IS ROSE IN nTH ROW.

4. IN 10TH ROW PLANTS WILL BE 35

5. THERE IS NO ROW IN WHICH NUMBER OF PLANTS ARE 24

Step-by-step explanation:

USE THESE FORMULAS FOR DEALING IN AP

1. A=a(n-1)d
2. d=2nd term-1st term.

I HOPE IT WILL HELP YOU.